The Body

The Body 

Through kanji acquisition, many basic body related words such as 手 (hand), 顔 (face), etc. become familiar to learners right off the bat, but a lot can be said about the bodies which our minds reside.

This lesson takes studying these words to the same level of care and attention as we did with plants and animals. In doing so, it is important to understand that you, as an intermediate learner, are not expected to memorize everything discussed. Instead, take what you need from it.

“The Body”   
「体」の様々な呼び方

The first wave of phrases that we will study are those pertaining to “body” and the immediate qualifications and nuancing that can be had with just the human body at large.

To simplify distinctions, Sino-Japanese words (those composed of ON readings), which tend to be technical, will have their readings rendered in Katakana. Additionally, the fourth column of each chart will indicate whether a word is part of the core vocabulary, a literary (formal/rare/poetic) word, or anatomical jargon (technical).

WordReadingTranslationImportance
体・身体からだBodyCore
身体シンタイPhysical bodyTechnical/Core
One’s personLiterary/core
肉体ニクタイThe fleshCore
上体ジョウタイUpper bodyCore
上半身ジョウハンシンUpper bodyTechnical/Core
下半身カハンシンLower bodyTechnical/Core
(体)全身からだゼンシンWhole bodyCore
裸体ラタイNaked bodyLiterary
裸身ラシン
はだかみ1
Naked bodyLiterary
2はだかNakednessCore
死体シタイDead bodyTechnical/Core
遺体イタイRemainsTechnical/Core
四肢シシFour limbsTechnical

Word Notes:
①There are a number of other ways to say “whole body”: 満身 seen in the phrase 満身創痍 (to have wounds all over one’s body,” 体全体, 体中, etc.
②体 occasionally only refers to the core of the body in set phrases such as 体当たり (body-slam) and 肢体 (the limbs and torso).  
③Colloquial ways of saying “naked body” include: 素っ裸 (in one’s bare skin), 丸裸, 真っ裸 (stark naked), 赤裸々3 (naked/nude), and すっぽんぽん (in one’s birthday suit).
④死体 may be seen spelled as 屍体 in literature, which carries a far more morbid tone.
⑤死体 is used in legal terminology such as 死体遺棄 (abandoning a corpse), while (ご)遺体 will often be heard when speaking about a deceased person’s body out of respect.
⑥Various other words for “corpse” exist: 亡骸(なきがら), 躯・骸(むくろ), 屍・尸(しかばね), and 遺骸 are all used rather frequently in literary fashion. In older words, 屍(かばね) may also be seen. 死骸 is also a common word for “corpse,” but it may also refer to the “carcass(es)” of anything. In a Buddhist context, you may also hear the deceased referred to as 仏さん.

Kanji Notes:
①身体 and 体 are both equally used for からだ in literature. As for other alternative spellings, 躰 refers to the whole body, while 體 is the original Kanji (kyūjitai 旧字体) for “body.”
②身 is frequently seen in words for “flesh and blood” and other emphatic phrases – exs. この身のすべて (all of one’s self) , 一身上 (personal), 身代わり (substitute/stand-in), 肉身 (the living flesh given to oneself by one’s parents), 生身4(living flesh), 身動きする (to move one’s body (freely)), etc.

1. 行方不明の男性が、遺体で見つかりました。
A man who had gone missed was found diseased.

2. アメリカの空港で、身体検査を受けました。
I was frisked at an American airport.

3. 毎日寝ていると、下半身だけ大量に汗をかきます。
Every day I sleep, I sweat profusely just from my lower body.

4. 目覚まし時計が最初に鳴った段階でを起こそうとする。
I get myself up from the start of my alarm clock going off.

5. 日本の高度成長期の発展に私もこの身を捧げました。
I also devoted myself to the development of Japan in its period of rapid growth.

6. 子供の上半身にする学校の健康診断をめぐって保護者らから不安の声があっている。
Concerns are being raised by guardians over school medical check-ups which have children stripped above the waist.

7. 身体を温める効果が高まります。
(Its/their) effect of warming the body increases.

8. 四肢に10か所ほど蚊に刺されました。
I was bitten by mosquitos in about 10 places all over my legs and arms.

“Physique”

A common synonym for the “body” in English is “physique,” and unsurprisingly, there are various words that translate to this in Japanese.

WordReadingTranslationImportance
体つきからだつきBody buildCore
体格タイカクFrameTechnical/Core
体躯タイクPhysical statureLiterary
恰幅カップクSolid buildLiterary

Word Notes:
①体つき is typically used in a subjective sense regarding outward characteristics, whereas 体格 is typically used in a objective sense regarding height (身長), weight (体重), etc.

9. いい体つきをしているのは、スーツ姿からも分かった。
I could tell that (he) had a nice body just form how (he) looked in a suit.

10. 黒スーツを着た体格がいい男が、玄関の前に立っていた。
A well-built man wearing a black suit was standing in front of (our) front door.

Hair   

Next, we will discuss the words pertaining to body hair.

WordReadingTranslationImportance
Body hairCore
体毛タイモウBody hairTechnical
産毛うぶげDowny hairTechnical
白髪しらがGrey hairCore
縮れ毛ちぢれげFrizzy hairTechnical
鼻毛はなげNose hairCore
胸毛むなげChest hairCore
腹毛はらげAbdominal hairTechnical
陰毛いんもうPubic hairCore
耳毛みみげEar hairTechnical
脛毛すねげLeg hairTechnical
指毛ゆびげFinger hairTechnical
ひげBeard/mustacheCore
睫(毛)まつげEyelashCore
眉(毛)まゆ(げ)EyebrowCore
埋没毛マイボツモウIngrown hairTechnical
柔毛・絨毛ジュウモウVillusTechnical
毛包
毛嚢
モウホウ
モウノウ
Hair follicleTechnical
毛穴けあなHair follicleCore
毛根モウコンHair rootTechnical
脱毛ダツモウHair loss Technical/Core

Word Notes:
①The development of hair (発毛) in humans may or may not be controlled by hormones (ホルモン). Hair that forms via sex hormones is called 性毛. All hair, thus, can be categorized by the role sex hormones play in development: male hair (男性毛), female hair (女性毛), ambisexual hair 両性毛, asexual hair (無性毛). Hair that develops during puberty (思春期) due to hormones are also examples of secondary sex traits (第二次性徴). 
②脱毛 has two meanings. It either refers to hair loss (抜け毛) or hair removal. In the case of hair removal, if the hair is being removed from the root (毛根), then you use 脱毛, but if it the hair is only being removed from the surface, you use 除毛. 

Kanji Notes:
①There are three Kanji for “beard/mustache” depending on where the hair is on the face. Facial hair around the mouth is (口)髭, facial hair on the jawline is (顎)鬚, and facial hair on the cheeks is (頬)髯.

11. 胸毛が濃い原因は何ですか。
What is the cause of (one’s) chest hair being thick?

12. 先日間違えて睫毛を切ってしまったんです。
I mistakenly cut off my eyelashes the other day.

13. テイラー君の我が儘な行為に、周囲の人たちはを顰めた。
The people around Taylor-kun frowned at his selfish conduct.

14. 出先でひげを剃り忘れたことに気づいた。
I realized that I had forgotten to shave (once I was at) where I had gone.

15. 一日だけで黒ずんだ毛穴を綺麗にすることは難しい。
Cleaning up blackheads in just one day is not feasible.

16. 一度白髪になった毛根からは、8割は再び白髪が生えてくる。
Roughly 80% of roots which have spawned grey hair once will grow grey hair again.

Parts of the Head
頭部の部位

In our thorough coverage of body parts found in the head region, we will first look at the core expressions that define the macro terms used to describe this area.

WordReadingTranslationImportance
あたまHeadCore
頭部トウブHeadTechnical/Core
ひたいForeheadCore
髪(の毛)かみ(のけ)HairCore
くちMouthCore
目・眼Eye(s)Core
目蓋・瞼まぶたEyelid(s)Core
目玉めだまEyeball(s)Core
Tooth/teethCore
はなNoseCore
くちびるLip(s)Core
ほお・ほほCheek(s)Core
こめかみこめかみTempleCore
かおFaceCore
みみEar(s)Core
5くびNeck/headCore
したTongueCore
あごJaw(s)Core
頭蓋骨ズガイコツSkullTechnical/Core
のどThroatCore

Grammar Notes:
①To indicate “left” and “right,” the prefixes 左(ひだり・サ)~ and 右(みぎ・ウ)~ are respectively attached to the front of the body part. Their Sino-Japanese readings are only found in anatomical jargon.
②The prefix 両~ (both) is used to refer to the “left/right” or “upper/lower” pairs of body parts such as the “eyes (両目)” “ears (両耳),” etc.
③For the prefixes mentioned in ①②, the particle の may intervene between the prefix and the body part, but this is not common. However, when using 左右の (left and right…) rather than 両~, の becomes imperative.
④To indicate “upper” and lower,” the prefixes 上(うわ・ジョウ)~ and 下(した・カ)~ are respectively attached to the front of the body part. Their Sino-Japanese readings are only found in anatomical jargon.

Kanji Notes:

①目 has a much broader meaning than 眼 in that it can refer to any sort of eye such as the “eye of a typhoon” 台風の目, whereas 眼 strictly refers to the anatomical eye. 
②眼 may also be read as まなこ.
③Colloquially, 瞳 may also be read as め.
④The spelling 目蓋 for “eyelid” is in line with its etymology of meaning “lid of the eye(s),” but the spelling 瞼 is actually predominant.
⑤脣 is a rare Kanji variant of 唇.
⑥Rare Kanji spellings for こめかみ (temple) include 蟀谷・顳顬.
⑦頸・頚 are alternative Kanji for 首 (neck).
⑧腭 is a rare Kanji variant of 顎 (jaw).

Word Notes:
①頭 also has the readings こうべ and かしら. Both words are archaic, but they are still used in set phrases. As for かしら, it may also mean “head person,” and it is also seen in the phrase 頭文字 (first letter of a word). 
②The “forehead” may be colloquially referred to as お凸. The reading ぬか for 額 is an archaic reading. As for the space between the eyebrows on the forehead, that is called 眉間.

17. 自分が息子のを絞めた。
I myself strangled my son’s neck.

18. 久しぶりに嫌な報道をにしました。
I caught a glimpse of an unpleasant news report, which had been a while.

19. が腫れています。
(My) lips are swollen.

20. が外れたら自分で治せます?
If you dislocate your jaw, can you fix it yourself?

21. 臭くて思わずを摘まんでしまいました。
It smelled so bad that I couldn’t help but pinch my nose shut.

22. 車のトランクにをぶつけてしまった。
I hit my head on the trunk of my car.

③The anatomical word for “mouth” is 口腔. The medical pronunciation is コウクウ, but the layman pronunciation is コウコウ. Important mouth-related terminology includes:

WordReadingTranslationImportance
扁桃腺ヘントウセンTonsilsTechnical/Core
口蓋コウガイPalateTechnical
軟口蓋ナンコウガイSoft palateTechnical
硬口蓋コウコウガイHard palateTechnical
口蓋垂コウガイスイUvulaTechnical
喉彦のどびこ6
のどひこ
UvulaCore
喉ちんこのどちんこUvulaCore (Casual)
口臭コウシュウMouth odorTechnical/Core
口角コウカクCorners of the mouthTechnical/Core

23. 口臭が気になって1日に何度もを磨くという人がいます。
There are people who brush their teeth countless times a day because of how they are concerned about their mouth odor.

24. 扁桃腺を取ると聞くと不安かもしれませんが、大人になってからであれば、身体に悪影響を与えることはありません。
One might be worried when told to remove one’s tonsils, but so long as this is done once one is an adult, there are no negative effects to the body.

25. [ɴ]は口蓋垂で発音される音です。
[ɴ] is a sound pronounced with the uvula.

④Important eye-related terminology includes:

WordReadingTranslationImportance
左目
左眼
ひだりめLeft eyeCore
右目
右眼
みぎめRight eyeCore
両目
両眼
リョウめ
リョウガン
Both eyesCore
眼球ガンキュウEyeball(s)Technical/Core
目玉めだまEyeball(s)Core
肉眼ニクガンThe naked eyeCore
眼瞼ガンケンEyelidTechnical
目蓋・瞼まぶた ◎
まなぶた
まぶち
まなぶち
EyelidCore
Dialectal/Literary
Dialectal/Literary
Dialectal/Literary
上瞼うわまぶたUpper eyelid(s)Core
下瞼したまぶたLower eyelid(s)Core
双眼ソウガンBoth eyes
Binocular
Technical
眼窩ガンカEye socketTechnical
眼孔ガンコウEye socketTechnical/Core
目脂めやにEye mucusCore
目配せめくばせWinkingCore
眼科ガンカOphthalmologyTechnical/Core
血眼ちまなこ ◎
ちめ
Bloodshot eye(s)Core
Dialectal
寝惚け眼ねぼけまなこSleepy eyesLiterary
目頭めがしらInner canthusCore
目尻・眦・眥まなじり ◎
まじり
めじり
まなこじり
まなさき
Corner of the eyeCore
Dialectal
Dialectal
Dialectal
Dialectal
まゆ ◎
まみえ
EyebrowCore
Dialectal/Literary
左眉(毛)ひだりまゆ(げ)Left eyebrowCore
右眉(毛)みぎまゆ(げ)Right eyebrowCore
眉根まゆねPart of eyebrow closest to the noseCore
眉尻まゆじりPart of eyebrow farthest from the noseCore
眉頭まゆがしらInner ends of eyebrowsCore
睫毛まつげ
ショウモウ
Eyelash(es)Core
Technical
上睫うわまつげUpper eyelash(es)Core
下睫したまつげLower eyelash(es)Core
ひとみPupilCore
瞳孔ドウコウPupilTechnical/Core
虹彩コウサイIrisTechnical
毛様体モウヨウタイCiliary bodyTechnical
脈絡膜ミャクラクマクChoroidTechnical
角膜カクマクCorneaTechnical/Core
水晶体スイショウタイLensTechnical
網膜モウマクRetinaTechnical/Core
隅角グウカクAngle (of the eye)Technical
結膜ケツマクConjunctivaTechnical
強膜キョウマクScleraTechnical
黄斑部オウハンブMaculaTechnical
中心窩チュウシンカFoveaTechnical

⑤The anatomical words for “left eyelid” and “right eyelid” respectively are 左眼瞼(サガンケン) and 右眼瞼(ウガンケン).

⑥The shorter pronunciation まゆ for 眉 meaning “eyebrow” is usually seen in set phrases such as 眉を顰める (to raise one’s eyebrows). 

26. 人間の肉眼で見える、1番小さい物は何でしょうか? 
What is the smallest thing that the human naked eye can see?

27. これまで、瞳孔の収縮・拡大プロセスは完全に無意識に行われると考えられてきました。
Up to now, it has been thought that the processes of the pupil contracting and expanded were carried out completely unconsciously.

28. 欧米人には、緑色のの人が多くいらっしゃって、これは虹彩の色での色ではありません。
There are many people among Westerners who have green eyes, but this is the color of their irises, not their pupils.

29. 僕は、大混雑している中を血眼になって財布を探した。
I searched for my wallow through as it was super crowded in a frenzy (lit. with bloodshot eyes).

30. 網膜には痛みを感じる神経がないので、痛みで網膜剥離に気づくことはない。
Since there is no nerve to feel pain in the retina, you won’t notice that your retinal has detached from pain.

⑦Important tooth-related terminology includes:

WordReadingTranslationImportance
切歯セッシIncisorTechnical
犬歯ケンシCanine toothTechnical/Core
糸切り歯いときりばCanine toothLiterary
臼歯キュウシMolarTechnical
小臼歯ショウキュウシPremolarTechnical
大臼歯
後臼歯
ダイキュウシ
コウキュウシ
True molarTechnical
前歯まえば
ゼンシ
Front toothCore
Technical
奥歯おくばBack toothCore
親知らずおやしらずWisdom toothCore
歯茎・齦はぐき
シケイ
GumsCore
Technical
歯肉シニクGumsTechnical
歯根シコンTooth rootTechnical
歯石シセキTartarTechnical
歯垢シコウPlaqueTechnical
歯槽シソウDental alveolusTechnical
出っ歯でっぱProtruding toothCore
虫歯むしばCavityCore
齲歯ウシCavityTechnical
入れ歯いればFalse toothCore
義歯ギシArtificial toothTechnical
乳歯ニュウシBaby toothTechnical
永久歯エイキュウシPermanent toothTechnical
歯形はがたTooth moldTechnical
歯並びはならびRow of teethCore
歯列シレツRow of teethTechnical
歯痛シツウToothacheTechnical
歯学シガクDentistryTechnical
歯科医 シカイDentistTechnical
抜歯バッシTooth extractionTechnical
歯列矯正シレツキョウセウOrthodonticsTechnical
歯列矯正器シレツキョウセイキBracesTechnical
歯周病シシュウビョウGum diseaseTechnical
歯磨きはみがきTeeth brushingCore
歯磨き粉はみがきこToothpasteCore

⑧知恵歯 and 知歯・智歯 are both direct translations of the English word “wisdom teeth,” which although technical in nature are not as predominant in use as 親知らず.
⑨お歯医者さん is the proper means of addressing a dentist. 歯科医 would refer to the dental practice you visit.

31. 歯並びが悪いと、食べ物をうまく噛めなかったりの間に食べ物が挟まったりする恐れがあります。
When your teeth alignment is bad, you run the risks of not being able to chew your food properly and having food get stuck in between your teeth.

32. お歯医者さん虫歯を抜いてもらったほうがいいですよ。
You’d better have a dentist pull out your cavity.

33. 親知らずは抜いたほうがいいですか。
Is it best to get your wisdom teeth removed?

34. 今の夫は、ありがたいことに私の出っ歯をかわいいと言ってくれて、矯正にはむしろ消極的です。
My current husband thankfully tells me that my buckteeth are cute, and if anything, has been negative towards me fixing them.

35. 歯列矯正治療の平均費用はいくらですか。
How much does the average expenses for orthodontics treatment cost?

⑩Important nose-related terminology includes:

WordReadingTranslationImportance
鼻の孔はなのあなNostril(s)Core
鼻孔ビコウNostril(s)Technical/Core
小鼻こばなNostrilsCore
鼻腔ビコウ
ビクウ
Nasal cavityTechnical/Core
副鼻腔フクビコウ
フクビクウ
Paranasal sinusTechnical
外鼻ガイビExternal noseTechnical
鼻毛はなげNose hairCore
鼻根ビコンRoot of the noseTechnical
鼻梁ビリョウBridge of the noseTechnical
鼻筋はなすじBridge of the noseCore
鼻柱はなばしらSeptumCore
鼻先はなさきTip of the noseCore
鼻中隔ビチュウカクNasal septumTechnical
鼻背ビハイDorsum of the boneTechnical
鼻翼ビヨクNasal alaTechnical
鼻骨ビコツNasal boneTechnical
鼻尖ビセンApex of the noseTechnical
鼻甲介ビコウカイNasal conchaTechnical
鼻道ビドウNasal meatusTechnical
鼻涙管ビルイカンNasolacrimal ductTechnical
鼻前庭ビゼンテイNasal vestibuleTechnical
鼻血はなぢNose bleedCore
鼻水はなみずNasal mucusCore
鼻息はないきNasal breathingCore
鼻声はなごえNasal voiceCore
はなSnifflesCore

⑪鼻腔 is read as ビクウ in the medical field, but it is colloquially read as ビコウ. The same can be said for 副鼻腔.

36. セスさんは小鼻を膨らませて、それがどうしたんだといった風の表情をしながら、わざとテイラー君を見た。
Seth-san flared his nostrils and had a look as if to say “so what of it?” as he deliberately looked at Taylor-kun.

37. 鼻血が止まらない。
My nose bleeds won’t stop.

38. 鼻毛を抜くと、風邪をひきやすくなる。
If you pluck your nose hair, you’re more likely to catch a cold.

39. 鼻筋が通っている。
For the bridge of one’s nose to be straight.

⑫Important lip-related terminology includes:

WordReadingTranslationImportance
口唇コウシンLipsTechnical
上唇うわくちびる
ジョウシン
Upper lipCore
Technical
下唇したくちびる
カシン
Lower lipCore
Technical

⑬Important cheek-related terminology includes:

WordReadingTranslationImportance
ほお・ほほCheek(s)Core
つらCheek(s)Archaic
笑窪・靨えくぼDimple(s)Core

⑭Colloquial variants for 頬 include ほっぺ, ほっぺた, and ほおべた.
⑮In older Japanese, 面 was also used to refer to “cheeks,” and is still seen with this meaning in some expressions such as 横(っ)面 (side of the face) and ツラの皮が厚い (literally: “for one’s cheek skin to be thick” meaning “to be brazen”).

40. ねえ、僕のほっぺた、つねてくれない?
Hey, could you pinch my cheek real good?

41. えくぼのある人はモテる? 
Are people with dimples popular?

⑯Important face-related terminology includes:

WordReadingTranslationImportance
かおFaceCore
顔面ガンメンFront of the faceCore
顔色かおいろComplexionCore
顔立ちかおだちFacial featuresCore
顳顬こめかみ ◎
こうがめ
ショウジュ
TempleCore
Dialectal
Technical
顔つきかおつきFacial expressionCore
かんばせVisageArchaic
笑顔えがおSmiling faceCore
横顔よこがおProfileCore
瓜実顔うりざねがおOval faceTechnical/Core
顔文字かおもじEmoticonCore

42. マスクで目元しか見えていないのに、「顔色が悪いね」と言われるのはなぜ?
Why is it that I’m told “your complexion is bad” when all (they) can see with my mask is the area around my eyes?

43. 明るい笑顔の人が周囲の人も明るくする。
Cheerful people with smiles on their faces brighten up the people around them.

44. 横顔から見るとが出っ張っているよねと言われてきました。
I’ve come to be told (as of late) that my nose looks like it’s sticking out when my face is seen from the side.

⑰Important ear-related terminology includes:

WordReadingTranslationImportance
左耳ひだりみみLeft earCore
右耳みぎみみRight earCore
両耳リョウみみBoth earCore
外耳ガイジOuter earTechnical
中耳チュウジMiddle earTechnical
内耳ナイジInner earTechnical
耳朶みみたぶ ◎
みみたぼ
ジダ
EarlobeCore
Dialectal
Technical
耳垂ジスイEarlobeTechnical
耳介ジカイAuricleTechnical
耳珠ジジュTragusTechnical
耳輪ジリンHelixTechnical
対耳輪タイジリンAntihelixTechnical
外耳道ガイジドウExternal ear canalTechnical
外耳孔ガイジコウExternal acoustic apertureTechnical
鼓膜 コマクEardrumTechnical/Core
鼓室コシツTympanic cavityTechnical
槌骨つちコツ ◎
ツイコツ
MalleusTechnical
砧骨きぬたコツ ◎
チンコツ
IncusTechnical
鐙骨あぶみコツ ◎
トウコツ
StirrupTechnical
耳管ジカンAuditory canalTechnical
エウスタキオ管えうすたきおカンEustachian tubeTechnical
耳垢みみあかEarwaxCore
人工内耳ジンコウナイジCochlear implantTechnical
三半規管サンハンキカンSemicircular canalsTechnical
前庭ゼンテイVestibuleTechnical
蝸牛カギュウCochleaTechnical
餃子耳ギョウザみみCauliflower earTechnical
耳鼻咽喉科ジビインコウカOtolaryngologyTechnical
耳鳴りみみなりTinnitusCore
耳かきみみかきEarpickCore
中耳炎チュウジエンOtitis mediaTechnical
完骨みみせせMastoid boneTechnical7

45. なかなか片耳耳鳴りが消えないんです。
The ringing in one of my ears just won’t go away.

46. 耳垢の乾性と湿性の割合は人種によって大きく異なります。
The percentages of people with dry or wet earwax differ greatly depending on race.

47. 耳管の内側は粘膜で覆われています。
The inside of the auditory/Eustachian tube is covered with a mucous membrane.

48. 中耳炎とは、の奥にある菌がからに繋がる耳管を通って中耳に侵入して炎症を起こす病気です。
Otitis media is a illness described as the inflammation caused by bacteria invading the middle area from the throat/back of the nose traveling through the Eustachian tube which connects the nose and ear.

⑱Important neck-related terminology includes:

WordReadingMeaningImportance
くびNeck/headCore
頸部ケイブNeck regionTechnical
頭頚部
頭頸部
トウケイブHead and neck regionTechnical
首筋くびすじNape of the neckCore
首根っこくびねっこScruff of the neckCore

⑲The word くび refers to the whole neck/head region, and depending on the context, it may be more natural to translate it as “head” instead of “neck” in English. くび is also seen as an integral part of the name of various body parts in which its meaning is more so akin to “where x attaches” – ex. 手首 = wrist (lit. where the hand attaches).

49. 首根っこを掴まれて「こっちを見ろ!」って言われた。
I was grabbed by the scruff of my neck and told, “look at me!”

50. を大きく左右に倒して,首筋を伸ばしてみてください。
Try tossing your head left and right to stretch the nape of your neck.

⑳Important tongue-related terminology includes:

WordReadingTranslationImportance
したTongueCore
べろべろTongueDialectal
味蕾ミライTaste budsTechnical
舌乳頭ゼツニュウトウLingual papillaeTechnical
舌腱膜ゼツケンマクLingual aponeurosisTechnical
舌小帯ゼツショウタイLingual frenumTechnical
唾液腺ダエキセンSaliva glandsTechnical
舌根ゼッコンRoot of the tongueTechnical
唾液ダエキSalivaTechnical/Core
つば ◎
つわ
つばき
SpitCore
Archaic
Archaic
よだれ ◎
ゆだれ
よど
DroolCore
Dialectal
Dialectal

51. 両耳を塞いでキスすると、唾液を絡める音がの中で響いて全然違った印象になる。
When you kiss (someone) with both of your ears plugged, the sounds of your tongues and saliva mixing together echo through your head, leaving a completely different impression.

52. は柔らかい組織なので力を入れて強く磨くと味を感じる味蕾を傷つけてしまう恐れがある。
Because the tongue is a soft tissue, if you put into too much strength when you brush it, there is the chance that you may injury your taste buds which detect flavor.

53. うっかりを噛んでしまった。
I inadvertently bit my tongue.

㉑Important jaw-related terminology includes:

WordReadingTranslationImportance
あごJawCore
上顎うわあご
ジョウガク
Upper jawCore
Technical
下顎したあご
カガク
Lower jawCore
Technical
おとがいChinTechnical

54. は、下顎の先端を指します。
“The chin” refers to the tip of the lower jaw.

55. をしっかり引くことはできますか?
Can you properly tuck your chin in?

㉒Important skull-related terminology includes:

WordReadingTranslationImportance
頭蓋骨ズガイコツ
トウガイコツ
Skull
Cranium
Core
Technical
髑髏ドクロ
しゃれこうべ
しゃりこうべ
されこうべ
Skull
Death’s head
Literary

56. この洞窟には、古代の髑髏がたくさん残されている。
There are many ancient skulls left in this cave.

㉓Important brain-related terminology includes:

WordReadingTranslationImportance
ノウBrainCore
頭脳ズノウBrainTechnical/Core
脳髄ノウズイBrainLiterary
大脳ダイノウCerebrumTechnical
小脳ショウノウCerebellumTechnical
中脳チュウノウMesencephalonTechnical
間脳カンノウDiencephalon Technical
海馬カイバHippocampusTechnical
延髄エンズイMedulla oblongataTechnical
キョウPonsTechnical
脊髄セキズイSpinal cordTechnical/Core
前頭葉ゼントウヨウFrontal lobeTechnical
頭頂葉トウチョウヨウParietal lobeTechnical
側頭葉ソクトウヨウTemporal lobeTechnical
後頭葉コウトウヨウOccipital lobeTechnical
中心溝チュウシンコウCentral sulcusTechnical
大脳溝ダイノウコウCerebral sulciTechnical
大脳皮質ダイノウヒシツCerebral cortexTechnical
脳膜ノウマクMeningesTechnical
クモ膜くもマクArachnoid membraneTechnical
硬膜コウマクDura materTechnical
脳漿ノウショウGrey matterTechnical
髄膜ズイマクMeningesTechnical

57. 脳を鍛えるには運動しかない!
The only thing one has to train one’s brain is exercise!

58. クモ膜下出血とは、強い頭部打撲によって起こる出血です。
A subarachnoid hemorrhage is a hemorrhage caused by a strong blow to the head region.

㉔Important throat-related terminology includes:

WordReadingTranslationImportance
のどThroatCore
咽喉インコウThroatTechnical
咽頭イントウPharynxTechnical
咽頭蓋イントウガイEpiglottisTechnical
喉頭コウトウLarynxTechnical
気管キカンTracheaTechnical/Core
喉仏のどぼとけAdam’s appleCore
喉骨のどぼねAdam’s appleLiterary
喉頭隆起イントウリュウキLaryngeal protuberanceTechnical

59. 児童が給食中にを詰まらせて息ができない。
Children are unable to breathe from choking during their meal time.

Parts of the Arm
腕の部位

The next parts of the body we will look into pertain to the arm, and by extension, the hands.

WordReadingTranslationImportance
うで ◎
かいな
ただむき
Arm
(Upper) arm
(Lower) arm
Core
Archaic
Archaic
上肢ジョウシUpper limbsTechnical
左腕ひだりうで ◎
サワン
Left armCore
Technical
右腕みぎうで ◎
ウワン
Right armCore
Technical
両腕うでBoth armsCore
Hand(s)Core
左手ひだりて ◎
ゆんで
Left handCore
Archaic
右手みぎて ◎
めて
Right handCore
Archaic
両手リョウてBoth handsCore
前腕ゼンワンForearmTechnical/Core
上腕ジョウワンUpper armTechnical/Core
二の腕ニのうでUpper arm
Lower arm
Technical
Archaic
一の腕イチのうでUpper arm Archaic
腋(の下)わき(のした)ArmpitCore
腋下エキカAxillaTechnical
ひじElbowCore
肘窩チュウカCubital fossaTechnical
ゆびFingerCore
指紋シモンFingerprintCore
つめNailCore
手首てくびWristCore
手の踝てのくるぶしWristDialectal
手の平てのひらPalmCore
たなごころPalmCore
手の甲てのコウBack of the handCore
こぶしFist(s)Core
二頭筋ニトウキンBicepsTechnical
三頭筋サントウキンTricepsTechnical

Word Notes:
①The native word うで covers the length of the arm from the shoulder to the wrist. In older Japanese, however, it only referred from the wrist to the elbow and also went by 腕・臂(ただむき). As for the “shoulder to the elbow” in older Japanese, we see the word 腕(かいな) used, which is still used in sumo wrestling.
②The five fingers all have a number of names which can be categorized by importance and etymology.

EnglishFinger #Core漢語InfantDialect
Thumb第一指親指
拇指・母指(ボシ)お父さん指
Index第二指 人差し指食指
示指
お母さん指塩嘗め指
Middle第三指中指中指(チュウシ)お兄さん指高々指
丈高指
Ring第四指薬指薬指
環指
無名指
お姉さん指薬師指
名無し指
紅差し指
紅付け指
Pinky第五指小指(こゆび)小指(ショウシ)赤ちゃん指

Kanji Notes:
①Alternative Kanji for ひじ meaning “elbow” include 肱 and 臂.
②To specify “toe” in Kanji in the medical field, 趾 exists, but it is rarely used.

60. 自分がを噛んでる姿を人に見られるのが恥ずかしいなぁ。
I’m really embarrassed from other people seeing me chew at my nails.

61. 同じ指紋を持つ人は二人と存在しません。
There are no two people who have the same fingerprints.

62. 手の甲にとるようにしてください。
Literally: Please make sure you take it on the back of the hand.
Please be sure to take it for what it is.

63. 外国の方に中指を立てると怒るのは何故ですか。
Why is it that foreigners get angry when you raise your middle finger (at them)?

64. 上腕二頭筋は、力瘤と呼ばれる部分の筋肉で、を曲げたまま重い荷物を持つ時に使われる。
The biceps, known as the muscles called “the flex of strength,” are used when holding heavy luggage while bending one’s elbow.

Parts of the Torso
胴体の部位

The next parts of the body we will look into pertain to the torso.

WordReadingTranslationImportance
胴(体)ドウ(タイ)TorsoTechnical/Core
胴部ドウブTorsoTechnical
はらStomachCore
かたShoulderCore
腹部フクブAbdomenTechnical
むねChestCore
胸部キョウブChestTechnical/Core
胸郭キョウカクThoraxTechnical
胸腔キョウクウ
キョウコウ
Chest cavityTechnical
胸板むないたChestLiterary
胸骨キョウコツSternumTechnical
胸膜(腔)キョウマク(クウ)
キョウマク(コウ)
Pleura(l cavity)Technical
胸腺キョウセンThymusTechnical
乳房ニュウボウ
ちぶさ
Breast(s)Technical/Core
へそNavelTechnical/Core
臍部サイブNavelTechnical
臍の緒へそのおUmbilical cordTechnical/Core
臍帯サイタイUmbilical cordTechnical
鳩尾キュウビ
みぞおち ◎
Solar plexusTechnical
心窩シンカSolar plexusTechnical
肋骨ロッコツ
あばらぼね
Rib(s)Technical/Core
鎖骨サコツCollar boneTechnical/Core
横隔膜オウカクマクDiaphragmTechnical/Core
胸筋キョウキンPectoral(s)Technical/Core
体幹タイカンTrunkTechnical/Core
骨盤コツバンPelvisTechnical/Core
背中せなかBackCore
こしWaistCore
脊椎セキツイSpineTechnical/Core
脊柱セキチュウSpinal columnTechnical/Core
腹筋フッキンAbsTechnical/Core
椎骨ツイコツVertebra(e)Technical/Core
鼠径部
鼠蹊部
ソケイブGroinTechnical
股間コカンCrotchCore
下腹部カフクブLower abdomenTechnical
心窩部シンカブEpigastric regionTechnical
季肋部キロクブHypochondriumTechnical
側腹部ソクフクブLateral regionTechnical
横腹よこばらFlankCore
脇腹わきばらSide of torsoCore
お尻おしりButtCore
臀部デンブButtock(s)Technical
肛門コウモンAnusTechnical/Core

Word Notes:
①The native word for abdomen/stomach is 腹, but in today’s speech, it is associated with male speech, as お腹 is preferred in everyday speech.
②胸腔 is read as キョウクウ in the medical field, but it is colloquially read as キョウコウ. The same can be said for 胸膜(腔).
③The word 胸 can refer to both the “chest” and to “breasts/bosom” of either gender. In certain contexts, it may also refer to any number of organs (idiomatically) located in/near the chest such as the heart, lungs, or even stomach. It may also figuratively refer to one’s heart/mind.
④The native word for “breast” may also be simply understood as 乳, which is either read as ちち or ち. This word can also refer to “breast milk.” Many words derive from this such as 乳兄弟 (foster sibling) 乳飲み子 (suckling child).
⑤鳩尾 derives from 水落ち (where water falls [after drinking]). It also goes by the Sino-Japanese inspired version of this in literature – 水月. 
⑥鎖骨 is the “collar bone.” In the sense of “to grab someone by the collar,” we see the phrase 胸倉を掴む, which refers to grabbing both sides of the collar to Japanese-style clothing. 襟 may refer to to the “scruff of the neck” as well as “collar” in clothing.
⑦The difference between 背 and 背中 is that the former refers to the full back(side), whereas the latter literally refers to the middle of the back. The former may also be used in the sense of “height/stature.” 背 has two readings: せ and せい. The former reading is associated with “the back,” while the latter reading means “stature.” Compare 背伸び (stretching one’s back) and 背格好 (height/size). The latter word actually can be heard pronounced as せかっこう, but せいかっこう is the traditionally correct reading. 
⑧腰 means “hips/waist but also includes the lower back (lumbar region). When referring to one’s waist as in measurement, the words 胴回り/ウエスト are used. 
⑨The “groin” is often colloquially referred to as 腿の付け根 (root of the thigh).  

65. 肩幅が広くて入る服がないのです。
My shoulders are wide, and so there aren’t clothes I can fit in.

66. 「こちょこちょこちょ」と彼氏の脇腹を擽った。
I went “tickle, tickle, tickle,” as I tickled my boyfriend’s flanks.

67. 深々と90度を折ってお辞儀をしていました。
I had been bowing deeply with my waist bent at a 90° angle.

68. ベルトでお尻を叩かれた。
I was spanked on the butt with a belt.

69. バイクの転倒などで複数の肋骨を折ってしまうことがあります。
There are situations in which (people) break multiple rib bones due to motorcycle falls and the like.

70. を張って堂々と生きよう。
Literally: Let’s live life proudly with our chests puffed out.
Let’s live proudly with our heads held high.

71. を吸うとき、横隔膜が下がる。
When one breathes, one’s diaphragm goes down.

72. 救急隊員は臍の緒を切った。
The paramedic cut the umbilical cord.

73. 両腕を後方に振って胴体を捻じります。
Wave both arms backward and twist your torso.

74. クランチは腹筋の基本!
Crunches are the key to abs!

75. 「歩く、座る、立つ」などという基本的な動作には全て体幹が関わります。
The trunk of the body is involved in all basic actions such as “walking, sitting, and standing.”

76. あの黒の帽子を被った男性は、以前から万引きの疑いでお店がマークしていた人物に背格好が似ている。
That man wearing the black hat resembles the person the store had marked for shoplifting in the past in stature.

The Privates 
陰部の部位

Next, we will look into the standard, anatomically correct terminology regarding private parts. Euphemisms and slang terminology, due to the sensitivities surrounding these words, will be for you to discover.

WordReadingTranslationImportance
陰部インブPrivate areaTechnical
股間コカンGroinTechnical/Core
股座・胯座またぐらCrotchTechnical/Core
男性器ダンセイキMale genitaliaTechnical/Core
女性器ジョセイキFemale genitaliaTechnical/Core
泌尿器ヒニョウキUrinary organTechnical
生殖器セイショクキReproductive organTechnical
性器セイキSex organTechnical/Core
陰茎インケイPenisTechnical/Core
陰嚢インノウ
ふぐり
ScrotumTechnical
Technical/Core
睾丸コウガンTesticleTechnical
チツVaginaTechnical/Core

Parts of the Legs/Feet 
脚・足の部位

Next, we will go over the parts of the legs and feet.

WordReadingTranslationImportance
あしLegCore
あしFootCore
下肢8カシLower limbsTechnical
太腿ふとももThigh
Buttocks
Core
股・腿9ももThighCore
大腿ダイタイThighTechnical/Core
上腿 ジョウタイUpper ThighTechnical
下腿 カタイShankTechnical
小腿ショウタイCalfTechnical
脹脛ふくらはぎCalfCore
こむらCalfLiterary
すねShinCore
向う脛むこうずねShinCore
ひざKneeCore
膝頭ひざがしらKneecapCore
膝小僧ひざこぞうKneecapCore
引屈・膕ひかがみArea behind kneeTechnical
膝窩シッカPopliteal fossaTechnical
よぼろ
よほろ
Area behind kneeArchaic
足首あしくびAnkleCore
くるぶし
くろぶし
つぶぶし
つぶなぎ
AnkleTechnical/Core
Dialectal
Archaic
Archaic
内踝うちくるぶしInner side of ankleTechnical
外踝そとくるぶしOuter side of ankleTechnical
かかと
きびす
くびす
あくと
HeelCore
Core
Dialectal
Dialectal
つめNailCore
爪先つまさきTips of the toesCore
趺・跗あなひらTop of the footLiterary
足の平あしのひらTop of the footCore
足の甲あしのコウTop of the footCore
足(の)指・趾あし(の)ゆびToeCore
足(の)裏・蹠あし(の)うらSole of the footCore
足底ソクテイSole of the footTechnical
土踏まずつちふまずArch of the footTechnical/Core
裸足・跣はだしBarefootCore

Word Notes:
①爪 is the word for analogous structures to “nails” in other creatures: claws, talons, etc.
②The names for the toes are largely analogous to those for the fingers of the hand, being prefaced with 足の for core vocabulary and 指 being replaced with 趾 in Sino-Japanese terminology.

77. 足音を忍ばせて寝室に入った。
I creeped into (lit. concealed my footsteps) the/my/our bedroom.

78. もう一方のも切断しなければならないのかもしれません。
(We) might have to amputate (their) other leg.

79. 朝起きて立つと、土踏まずが痛い。
When I wake up, the area around the arch and heel of feet hurt.

80. 川沿いを裸足で歩いていた。
I was walking barefoot along the river.

81. 足の甲にスマホを落としてしまった。
I dropped my smartphone on the top of my foot.

Internal Organs 
臓器・器官

Although several external organs have been mentioned thus far, there is still a lot to learn about what resides inside the body.

■”Organ”

器官 is a collective entity of the body that forms a particular function. 臓器 is synonymous, but it is often most employed when referring to organs of the torso. These organs may also be called 内臓. Oddly enough, the heart is usually not deemed by speakers to fit under the definition of 内臓. Traditionally, organs were classified by 五臓六腑: 五臓 refers to the liver, heart, spleen, heart, and kidneys, and 六腑 refers to the gall bladder, small intestine, large intestine, stomach, bladder, and the san jiao (三焦), which is a functional metabolic organ in Chinese medicine. 

■Membranes

Organs are also covered by all sorts of membranes (膜). Many such membranes have been discussed so far, both some very important words include:

WordReadingTranslationImportance
鼓膜コマクEardrumTechnical/Core
網膜モウマクRetinaTechnical/Core
脳膜ノウマクMeningesTechnical
腹膜フクマクPeritoneumTechnical
隔膜カクマクDiaphragmTechnical
核膜カクマクNuclear membraneTechnical
皮膜ヒマクFilmTechnical
結膜ケツマクConjunctivaTechnical
粘膜ネンマクMucous membraneTechnical
肋膜ロクマクPleuraTechnical

82. 鼓膜が破れたら障害が残りますか?
Are you left with any impairment if your eardrum bursts?

The Digestive System
消化器系

The most important organ of the digestive system is the digestive tract 消化管. The digestive tract is then controlled by various 消化腺 (digestive glands) and auxiliary organs (付属器) such as the teeth (歯) and the liver (肝臓). Other important words include:

WordReadingTranslationImportance
唾液腺ダエキセンSaliva glandTechnical
耳下腺ジカセンParotid glandTechnical
舌下腺ゼッカセンSublingual glandTechnical
顎下腺ガッカセンSubmandibular glandTechnical
大唾液腺ダイダエキセンMajor salivary glandsTechnical
小唾液腺ショウダエキセンMinor salivary glandsTechnical
(口)唇腺(コウ)シンセンLabial glandsTechnical
臼歯腺キュウシセンMolar glandsTechnical
口蓋腺コウガイセンPalatine glandTechnical
頬腺キョウセンBuccal glandTechnical
StomachTechnical/Core
胃袋イぶくろStomachCore
胃液イエキGastric juiceTechnical
胃壁イヘキGastric wallTechnical
胃体イタイGastric corpusTechnical
大彎ダイワンGreater curvatureTechnical
小彎ショウワンLesser curvatureTechnical
噴門フンモンCardiac orificeTechnical
胃底イテイStomach fundusTechnical
幽門ユウモンPylorusTechnical
食道ショクドウEsophagusTechnical/Core
チョウ
はらわた
Intestines
Guts
Core
Core
臓腑ゾウフEntrailsTechnical
小腸ショウチョウSmall intestineTechnical/Core
大腸ダイチョウLarge intestineTechnical/Core
憩室ケイシツDiverticulum/aTechnical
十二指腸ジュウニシチョウDuodenumTechnical
空腸クウチョウJejunumTechnical
回腸カイチョウIleumTechnical
盲腸モウチョウCecumTechnical
虫垂チュウスイAppendixTechnical/Core
結腸ケッチョウColonTechnical/Core
直腸チョクチョウRectumTechnical/Core
膵臓スイゾウPancreas Technical/Core
きもLiver/innardsCore
肝臓カンゾウLiverTechnical/Core
肝細胞カンサイボウHepatocyteTechnical
肝動脈カンドウミャクHepatic arteryTechnical
胆嚢タンノウGall bladderTechnical/Core
胆汁タンジュウBileTechnical
胆管タンカンBile ductTechnical
胆道タンドウBiliary tractTechnical

83. 飲んだ後の胃袋に優しい料理でした。
It was a meal gentle to (my) stomach after having had (alcohol).

84. 胆嚢を取ることによる後遺症は若い男性を除けばほとんどない。
There are hardly any affect-effects from getting your gall bladder removed, excluding young men.

85. 消化器官としての役割だけでなく、全身の健康のためにも重要な臓器です。
The intestines are an important set of organs not just for their role as digestive organs but also for the overall health of the body.

86. 強めのウォッカが(はらわた)に沁みてくる。
The fairly strong vodka is permeating (my) guts.

87. がさらに大きくなると、食道を塞いで水も通らなくなり、唾液も飲み込めずに戻すようになります。
As the cancer grows further, it blocks the esophagus, which results in water being unable to flow down and even resulting in saliva to not be swallowed and come back up.

88. 虫垂が破裂すると、膿がお腹に漏れ出して、全身に黴菌が回り、数時間で死亡してしまう可能性が高くなる。
When the appendix ruptures, puss leaks into the abdomen and bacteria spreads throughout the whole body, which increases the risk of dying within a few hours.

The Circulatory System 
循環器系

The circulatory system (循環器系・脈管系), can be split into two parts: the vascular system (血管系) and the lymphatic system (リンパ系). Note that the ‘cardiovascular system’ (心血管系) is responsible for carrying oxygenated blood away from the heart to the rest of the body in a process called 体循環. The opposite of this is pulmonary circulation (肺循環), which carries oxygen-depleted blood away from the heart to the lungs so that it may return oxygen-rich (see below for the respiratory system). Other important words include:   

WordReadingTranslationImportance
BloodCore
血液ケツエキBloodTechnical/Core
血球ケッキュウBlood cellTechnical
赤血球セッケッキュウRed blood cellTechnical
白血球ハッケッキュウWhite blood cellTechnical
骨髄コツズイBone marrowTechnical/Core
血管ケッカンBlood vesselTechnical/Core
血脈ケツミャクBlood vesselTechnical/Literary
毛細血管モウサイケッカンCapillariesTechnical
出血シュッケツHemorrhageTechnical/Core
貧血(症)ヒンケツ(ショウ)AnemiaTechnical/Core
血栓ケッセンBlood clotTechnical/Core
ミャクPulse/veinCore
脈拍
脈搏
ミャクハクPulseTechnical/Core
心臓シンゾウHeartTechnical/Core
動脈ドウミャクArteryTechnical/Core
静脈ジョウミャクVeinTechnical/Core
動脈血ドウミャクケツArterial bloodTechnical
静脈血ジョウミャクケツVenous bloodTechnical
脾臓ヒゾウSpleenTechnical/Core
リンパ管りんぱカンLymph ductTechnical
リンパ腺りんぱセンLymph gland Technical/Core
リンパ節りんぱセツLymph nodeTechnical/Core
リンパ球りんぱキュウLymphocyteTechnical
胸腺キョウセンThymusTechnical

89. 紛争以前でさえ血管外科医や整形外科医は不足していました。
Even before the conflict, there were shortages in vein surgeons, plastic surgeons, and the like.

90. を塞いでもを瞑っても心臓を打ち続けている。
No matter if you close your ears or close your eyes, your heart keeps beating.

91. リンパ腺が腫れている場合は、気を付けた方がいいのが、痛みがどこにもない時だ。
Whenever your lymph nodes are swollen, what you ought to be careful of is when there is no pain to be had anywhere.

92. 脾臓がないと感染症にかかりやすい。
When you have no spleen, it is easier for you to catch an infectious disease.

93. 血液足の先から心臓へ戻すことが静脈の役割です。
It is the role of your veins to return blood from the tips of your feet to your heart.

94. このようなが飛ぶと血管を詰まらせて脳梗塞を引き起こすことがあります。
When this sort of blood clot breaks off, it can clog your brain’s blood vessels and cause a stroke.

95. 血球は、骨の中の骨髄で造られます。
Blood cells are made in the marrow inside your bones.

Word Notes:
①Important heart-related terminology includes:

WordReadingTranslationImportance
心臓壁シンゾウヘキCardiac wallTechnical
左心房サシンボウLeft atriumTechnical
右心房ウシンボウRight atriumTechnical
左心室サシンシツLeft ventricleTechnical
右心室ウシンシツRight ventricleTechnical
大動脈ダイドウミャクAortaTechnical
上大動脈ジョウダイドウミャクSuperior aortaTechnical
下大静脈カダイドウミャクDescending aortaTechnical
大動脈弁ダイドウミャクベンAortic valveTechnical
肺動脈ハイドウミャクPulmonary arteryTechnical
肺動脈弁ハイドウミャクベンPulmonary valveTechnical
僧帽弁ゾウボウベンMitral valveTechnical
三尖弁サンセンベンTricupsid valveTechnical
心膜シンマクPericardiumTechnical
心不全シンフゼンHeart failureTechnical
心筋梗塞シンキンコウソクMyocardial infarctionTechnical
心臓病シンゾウビョウHeart diseaseTechnical/Core
心停止シンテイシCardiac arrestTechnical
心臓発作シンゾウホッサHeart attackTechnical/Core
心臓麻痺シンゾウマヒCardioplegiaTechnical

Word Notes:
①The metaphorical “heart” is 心.

Kanji Notes:
①リンパ may be written in Kanji as 淋巴. 

96. 心臓麻痺を起こして倒れた人に電気ショックを与えることで、救命できる。
By providing an electric shock to someone who has collapsed from a heart attack, you can save their life.

97. 高齢者の心不全でさらに深刻なのが、再入院の問題です。
What’s even more serious with heart failure among the elderly is the issue of rehospitalization.

The Respiratory System
呼吸器系

Key words regarding the respiratory system including parts of the lungs include the following:

WordReadingTranslationImportance
呼吸コキュウRespirationTechnical/Core
酸素呼吸サンソコキュウAerobic respirationTechnical
無気呼吸ムキコキュウAnaerobic respirationTechnical
外呼吸ガイコキュウExternal respirationTechnical
内呼吸ナイコキュウInternal respirationTechnical
代謝タイシャMetabolismTechnical/Core
いきBreathCore
呼吸器コキュウキRespiratory organ(s)Technical
上気道ジョウキドウUpper respiratory tractTechnical
下気道カキドウLower respiratory tractTechnical
気管キカンTracheaTechnical/Core
気管支キカンシBronchusTechnical/Core
肺(臓)ハイ(ゾウ)Lung(s)Technical/Core
左肺ひだりハイ10Left lungTechnical/Core
右肺みぎハイRight lungTechnical/Core
肺胞ハイホウAlveoliTechnical
上葉ジョウヨウUpper lobe(s)Technical
中葉チュウヨウMedial lobe(s)Technical
下葉カヨウLower lobe(s)Technical

98. 体温代謝が低い場合、身体を温めるためには、温かい食事を摂る事が大切です。
Whenever your body temperature and/or metabolism is low, it is important to have a hot meal to warm up your body.

99. 人は呼吸をして全身に酸素を送っていますが、呼吸が浅いと酸素が不足してしまいます。
People have oxygen sent throughout their bodies via respiration, but when one’s respiration is shallow, (the body) does not get enough oxygen.

100. 激しいが吸えない!
I can’t breath from coughing so hard!

101. 東洋医学におけるは,現代医学でいう肺臓とは異なり、から気道を通り肺臓至るまでを指します。
The “lungs” in Eastern medicine, unlike the “lungs” in modern medicine, refers to from the nose, traversing down the respiratory tract, to the lungs.

The Urinary System 
泌尿器系

Excluding genitalia which has already been covered above, the primary organs of the urinary system are as follows:

WordReadingTranslationImportance
腎臓ジンゾウKidneyTechnical/Core
むらとKidneyArchaic
膀胱ボウコウBladderTechnical/Core
尿管ニョウカンUreterTechnical
尿道ニョウドウUrethraTechnical
尿ニョウ
いばり
ゆばり
UrineTechnical/Core
Archaic/Dialectal
Archaic/Dialectal
尿路結石ニョウロケッセキKidney stoneTechnical
小便ショウベン
ションベン
PeeCore
Core/Slang

102. 膀胱尿が溜まってくると、膀胱からに「トイレへ行きなさい」という信号が送られる。
When urine accumulates in the bladder, signals are sent from the bladder to the brain to “go to the restroom.”

The Reproductive System 
生殖器系

The reproductive organs of the human body, along with important terminology related to the reproductive system, are shown below.

WordReadingTranslationImportance
精巣セイソウTesticle(s)Technical
睾丸コウガンTesticle(s)Technical/Core
陰嚢インノウScrotumTechnical
精巣上体セイソウジョウタイEpididymisTechnical
副睾丸フクコウガンEpididymisTechnical
射精管 シャセイカンEjaculatory ductTechnical
尿道球腺ニョウドウキュウセンBulbourethral glandTechnical
カウパー腺 かうぱーセンCowper’s glandTechnical
精嚢セイノウSeminal vesicle Technical
前立腺ゼンリツセンProstate glandTechnical/Core
卵巣ランソウOvari(es)Technical/Core
(輸)卵管(ユ)ランカンFallopian tube(s)Technical/Core
子宮シキュウUterusTechnical/Core
胎盤タイバンPlacentaTechnical/Core
卵(子)ラン(シ)Egg(s)Technical/Core
受精卵ジュセイランZygote(s)Technical
胎児タイジFetusTechnical/Core
流産リュウザンMiscarriageTechnical/Core
出産シュッサンGiving birthTechnical/Core
胎生タイセイPlacental birthTechnical/Core
後産あとザン ◎
のちざん
コウザン
AfterbirthTechnical/Core
羊膜ヨウマクAmnionTechnical
羊水ヨウスイAmniotic fluidTechnical
臍帯セイタイUmbilical cordTechnical
胞衣ホウイ
ホウエ
えな
Placenta (afterbirth)Technical

103. 男性の睾丸を蹴られた痛みと、女性の出産の痛みとでは、どちらが痛いのでしょうか?
Which pain is worse: the pain a man feels when kicked in the testicles or the pain a woman feels during childbirth?

104. 前立腺が大きくなると排尿が困難になることがあります。
When the prostate enlarges, there are cases of urination becoming difficult.

105. 子宮がないために通常の月経は起こらず、思春期になって初潮がこないことで初めて気付かれることが多い。
Regular periods do not occur from having no uterus, and there are many cases in which (the lack of one) is noticed for the first time upon entering puberty and not experiencing one’s first period.

106. 受精卵の染色異常を治療する方法はありません。
There is no way to cure chromosomal abnormalities in a zygote.

The Endocrine System 
内分泌器系

The role of the endocrine system (内分泌(器)系・液体調整系) is to secrete hormones (ホルモン) through endocrine glands (内分泌腺). The primary parts of the endocrine system are as follows:

WordReadingMeaningImportance
松果体ショウカタイPineal bodyTechnical
(脳)下垂体(ノウ)カスイタイPituitary glandTechnical
甲状腺コウジョウセンThyroid glandTechnical/Core
副腎フクジンAdrenal glandTechnical
腎上体ジンジョウタイAdrenal glandTechnical
膵臓スイゾウPancreasTechnical/Core
卵巣ランソウOvari(es)Technical/Core
精巣セイソウTesticle(s)Technical

107. 卵巣がなくなると女性ホルモンが出なくなります。
When you have no ovaries, female hormones do not get produced.

The Sensory System 
感覚器系

There are six basic senses (感覚) represented by a signature organ.  These senses are sight  (視覚), hearing  (聴覚), smell (嗅覚), taste (味覚), feeling (触覚), and balance (平衡覚). All of these words may be followed by the suffix ~器 to represent the organ(s) of said systems. 

WordReadingMeaningImportance
視覚器シカクキOptic organTechnical
聴覚器チョウカクキAuditoryTechnical
嗅覚器キュウカクキOlfactory organTechnical
味覚器ミカクキTaste organTechnical
触覚器ショッカクキTactoreceptorTechnical
平衡覚器ヘオコウカクキEquilibrium organTechnical

■The Skin

Important skin-related terminology includes:

WordReadingMeaningImportance
はだ ◎
はだえ
SkinCore
Archaic
皮膚ヒフSkinTechnical/Core
表皮ヒョウヒEpidermisTechnical/Core
真皮シンピDermaTechnical
皮下組織ヒカソシキHypodermisTechnical
有棘細胞ユウキョクサイボウSquamous cellTechnical
顆粒細胞カリュウサイボウGranule cellTechnical
角質細胞カクシツサイボウKeratinocyteTechnical
有棘層ユウキョクソウStratum spinosumTechnical
顆粒層カリュウソウStratum granulosumTechnical
角(質)層カク(シツ)ソウStratum corneumTechnical
上皮ジョウヒEpitheliumTechnical
メラニンめらにんMelaninTechnical/Core
乳頭層ニュウトウソウPapillary layerTechnical
網状層モウジョウソウReticular layerTechnical
汗腺カンセンSweat glandTechnical
皮下脂肪ヒカシボウSubcutaneous fatTechnical
肌色はだいろSkin color11Core
面皰にきびPimpleCore
痘痕あばたPockmarkTechnical
吹き出物ふきでものSkin eruptionTechnical/Core
発疹ホッシンRashCore
(青)痣(あお)あざBruiseCore
擦過傷サッカショウAbrasionTechnical/Core
火傷やけどBurnCore
蕁麻疹ジンマシンHivesCore
しわWrinkle(s)Core

108. むだ毛はこめかみを抑えて肌を伸ばすと剃りやすい。
Unwanted hairs are easier to shave by holding down your temples and stretching the skin.

109. 急に痣ができて、時間が経っても消えない場合には、皮膚科に相談するのが良いでしょう。
In the event you suddenly bruise and it doesn’t go away after a while, it’s best that you consult a dermatology practice.

110. 顔を洗っていないから、ニキビができるというわけではありません。 
Acne doesn’t occur because you’re not washing your face.

111. 紫外線予防をしないと、将来、顔が皺くちゃになっちゃうよ!
If you don’t  protect yourself from UV rays, your face will get wrinkly in the future!

112. どのくらいの量が飲み過ぎかは個人差がありますが、少なくとも蕁麻疹が出たらしばらくは飲酒は控えましょう。
What amount constitutes drinking too much will differ from person to person, but at the very least, if you start to hive up, refrain from drinking for some time.

The Nervous System 
神経系

Important nervous system-related terminology includes:

WordReadingMeaningImportance
神経シンケイNerveTechnical/Core
神経細胞シンケイサイボウNerve cellTechnical
ニューロン にゅーろんNeuronTechnical
シナプスしなぷすSynapseTechnical
神経伝達物質シンケイデンタツブッシツNeurotransmitterTechnical
ニューロン連鎖にゅーろんレンサNeuron chainTechnical
伝導路デンドウロConduction pathTechnical
求心性神経キュウシンセイシンケイAfferent nerveTechnical
遠心性神経エンシンセイシンケイEfferent nerveTechnical
神経線維束シンケイセンイソクAxonTechnical
神経細胞体シンケイサイボウタイNerve cell bodyTechnical
神経節シンケイセツGanglionTechnical
末梢神経系マッショウシンケイケイPeripheral nervous systemTechnical
中枢神経系チュウスウシンケイエイCentral nervous systemTechnical
終脳シュウノウTelencephalonTechnical
大脳皮質ダイノウヒシツCerebral cortexTechnical
白質ハクシツWhite matterTechnical
大脳基底核ダイノウキテイカクBasal gangliaTechnical
灰白質カイハクシツGrey matterTechnical
神経線維シンケイセンイNerve fiberTechnical
自律神経ジリツシンケイAutonomic nerveTechnical
大脳ダイノウCerebrumTechnical
大脳半球ダイノウハンキュウCerebral hemisphereTechnical
中脳チュウノウMidbrainTechnical
間脳カンノウInterbrainTechnical
神経組織シンケイソシキNerve tissueTechnical
神経膠細胞シンケイコウサイボウNeuroglial cellTechnical
グリア細胞サイボウGlial cellTechnical
脊髄セキズイSpinal cordTechnical/Core
脊柱管セキチュウカンSpinal canalTechnical/Core
椎骨ツイコツVertebraeTechnical/Core
神経束シンケイソクNerve bundleTechnical
脊髄神経セキズイシンケイSpinal nerveTechnical
アストロサイトあすとろさいとAstrocyteTechnical
アストログリアあすとろぐりあAstrogliaTechnical

■Cranial Nerves 脳神経

第一脳神経嗅神経Olfactory nerve
第二脳神経視神経Optic nerve
第三脳神経動眼神経Oculomotor nerve
第四脳神経滑車神経Trochlear nerve
第五脳神経三叉神経Trigeminal nerve
第六脳神経外転神経Abducens nerve
第七脳神経顔面神経Facial nerve
第八脳神経内耳神経
聴神経
前庭蝸牛神経
Vestibulocochlear nerve
Auditory nerve
第九脳神経舌咽神経Glossopharyngeal nerve
第十脳神経迷走神経Vagus nerve
第十一脳神経副神経Accessory nerve
第十二脳神経舌下神経Hypoglossal nerve

113. 笑いは迷走神経を刺激することによって、不安を軽減するのに役立ちます。
Laughter aids in reducing anxiety by stimulating the Vagus nerve.

Pain 痛み 

The word 痛み refers to both physical and psychological pain. In the latter sense, it is interchangeable with 苦痛 and 苦しみ. As for specific physical pains, the “part of the body + suffix ~痛” is used with Sino-Japanese words, whereas with native words, “part of the body + の痛み” is used.

The medical terminology for physical pain is 疼痛. The Kanji 疼 means “to ache” and can also be found in the verb 疼く (to ache). Pain comes from stimuli (刺激) to the various peripheral nerves (末梢神経) of the body. Pain is often alleviated through pain killers (鎮痛薬・鎮痛剤).  

Many words can be used to describe the degree of pain (痛みの程度). When filling out a medical form, you often choose from: 激痛 (sharp pain), 鈍痛 (dull pain), 無痛 (no pain). However, describing pain in your own words is just as important. Phrases to consider include the following:

突き刺されるような痛みA piercing
締め付けられる痛みA constricting pain
焼けつくような痛みA burning pain
重苦しい痛みA heavy pain
割れるような痛みA splitting pain
気分が悪くなるような痛みAn upsetting pain
疼くような痛みAn aching pain
ズキンズキンと脈打つ痛みA pulsing pain

■Pain Onomatopoeia  痛みの擬音語

Japanese is full of onomatopoeia related to pain.

ズキズキA strong pulsing pain associated with headaches, wounds, toothaches, etc. Emphatic form: ズキンズキン
チクチクA prickling/stinging pain. 
ギシギシMuscle/joint pain, often associated with growing pains and knee pain. 
ジンジンA strong, numbing pain, often caused by bumping into something hard or the feeling of being shocked.
ガンガンThe sense of a large sound reverberating through one’s head, often associated with migraines. 
ヒリヒリ①Continued feeling of the nerves and/or skin burning (literally). Gives a sense of pressing anxiety (figuratively). 
②Feeling of throat feeling so dry it hurts. 
③Prolonged, sharp spicy feeling. 
Body parts attributed to ひりひり include: the skin, (parts of the hand) hands, face, etc. Injuries associated with it include sunburn (日焼け), burns (火傷), and bruises (擦り傷). 
ひりっFeeling a stimulus/pain/spice for a brief moment.
ひりり①Feeling a sharp pain/stimulus only momentarily.
②Repeated shaking of the body in short intervals.  
びりびりContinuous, strong, throbbing stimulation/pain. 

Body parts attributed to びりびり include: the feet, skin, elbow, hands, tongue, arms, shoulders, etc. Feelings such as the feet becoming numb, feeling of hitting one’s elbow, and overall feeling of electric shock are common injuries associated with it. 
びりっThe sense/sound of electricity running through the air/body. 
びりりTemporary feeling of being shocked.
ぴりぴり①Strong stimulation to the heart/nerves. 
②Continuously feeling sharp stimulation/pain.
Body parts attributed to ぴりぴり include: the tongue, skin, hands, mouth, feet, etc. Injuries/stimuli most associated are “the pain from eating spicy food,” “a paralyzing pain,” “feeling of electric shock,” etc.  
ぴりっ①Feeling a sharp stimulation only briefly, especially relating to spice. 
②May also express the body tightening up. 
ぴりりTemporary sharp stimulus of shock/from spice.

114. 舌がひりひりするほど辛すぎる。
It’s too spicy to the point your tongue stings (from it).

115. 手がびりびり(と)痺れた。
My hands went painfully numb as if they got shocked.

116. お風呂やトイレにいくと身体がピリッと痺れて眩暈がします。
When I go take a bath or to the restroom, my body numbs up with a tingle, then I get dizzy.

117. ズキンズキンと痛んでいる場所にアイスパックを当てることで炎症状態を鎮め、または痛みを緩和させることができます。
By applying an ice pack to where the pain is pounding, you can relieve inflammation as well as alleviate the pain.

118. 脇腹がじんじん(と)痛いです。
There’s a throbbing pain on the side(s) of my torso.

119. 二日酔いで頭がガンガン(と)痛いです。
My head is pounding from my hangover.

120. お腹がしくしく(と)痛いです。
My stomach is cramping.

■Adjectives to Describe Pain

鈍いDull緩やか(な)Mild
激しいSevere鋭いSharp
絶え間ないConstant慢性的(な)Chronic
断続的(な)Intermittent局所的(な)Localized
広範囲のWidespread奥深いDeep

■Specific Pains 特定の痛み

WordReadingTranslationImportance
頭痛ズツウHeadacheCore
偏頭痛
片頭痛
ヘンズツウ
ヘントウツウ
MigraineTechnical/Core
腹痛フクツウAbdominal painTechnical
胸痛キョウツウChest painTechnical
腰痛ヨウツウLumbagoTechnical
背痛ハイツウBackacheTechnical
神経痛シンケイツウNeuralgiaTechnical
筋肉痛キンニクツウMyalgiaTechnical/Core
陣痛
産痛
ジンツウ
サンツウ
Labor painTechnical/Core
Technical
生理痛
月経痛
セイリツウ
ゲッケイツウ
Menstrual painTechnical/Core
胃痛イツウGastralgia  Technical/Core
歯痛シツウToothacheTechnical
痛風ツウフウGoutCore
群発性頭痛グンパツセイズツウCluster headacheTechnical
耳痛ジツウAural painTechnical
緊張性頭痛キンチョウセイズツウTension headacheTechnical
関節痛カンセツツウArthralgiaTechnical/Core
排卵痛ハイランツウOvulation painTechnical
痛手いたでWoundCore
膵臓痛スイゾウツウPancreatic painTechnical
関連痛カンレンツウReferred painTechnical
癌性疼痛ガンセイトウツウCancer painTechnical
圧痛アッツウTendernessTechnical
成長痛セイチョウツウGrowing painsTechnical/Core

Some of these words are very common in the spoken language. However, some of them, as their English translations suggest, are medical jargon. For instance, ear pain is medically described as 耳の痛み. However, your diagnosis paper will likely have 耳痛 listed. Medical forms are the most practical use of these technical words. 

Of these words, two words not created with the suffix ~痛 include: 痛風  (gout) and 痛手 (serious wound). The latter is a native word which is synonymous with 深手. “Wounds” are also called 傷, and the word for “injury” itself is 怪我. Wounds are also described in terms of being 軽傷 (light injury) or 重傷 (serious injury). 

121. 痛風が痛むのはよく聞きますが、が痛むこともあるのですか?
You often hear how your feet hurt from gout, but are there also cases of your knees hurting (from it)?

122. 片頭痛は、を打つようにズキンズキンと痛むのが特徴の重度の消耗性頭痛です。
Migraines are severe, debilitating headaches characterized by pulsing, throbbing pain.

Kinds of Conditions: 炎, 症, 病

The nervous system helps us be aware of various health problems. Many words related to the body are combined with the following suffixes: ~炎 (inflammatory disease = 炎症), ~症 (illness), and ~病 (disease).  Though there are countless words made with these endings, we will limit our scope to those commonly used/known. 

■The Suffix ~炎

WordReadingTranslationImportance
肺炎ハイエンPneumonia Technical/Core
口内炎コウナイエンMouth ulcerTechnical/Core
皮膚炎ヒフエンDermatitisTechnical/Core
肝炎カンエンHepatitisTechnical/Core
気管支炎キカンシエンBronchitisTechnical/Core
虫垂炎チュウスイエンAppendicitisTechnical/Core
腱鞘炎ケンショウエンTendonitisTechnical/Core
膀胱炎ボウコウエンCystitisTechnical/Core
関節炎カンセツエンArthritisTechnical/Core
脳炎ノウエンEncephalitisTechnical
髄膜炎ズイマクエンMeningitisTechnical
胃炎イエンGastritisTechnical/Core
扁桃炎ヘントウエンTonsillitisTechnical
鼻炎ビエンRhinitisTechnical/Core
副鼻腔炎フクビクウエン
フクビコウエン
SinusitisTechnical
大腸炎ダイチョウエンColitisTechnical/Core
胆嚢炎タンノウエンCholecystitisTechnical
膵(臓)炎スイ(ゾウ)エンPancreatitisTechnical

123. 父が金曜日に、肺炎で入院しました。
My father was admitted into the hospital on Friday for pneumonia.

124. 風邪のような症状だけで終わることもありますが、1000人に1人の割合で脳炎を起こします。
Though there are cases which end with cold-like symptoms, it causes meningitis at a rate of 1 out of 1,000 people.

■The Suffix ~症

WordReadingTranslationImportance
感染症カンセンショウInfectious diseaseTechnical/Core
神経症シンケイショウNeurosisTechnical
性行為感染症セイコウイカンセンショウSTD/STITechnical/Core
高血圧症コウケツアツショウHypertensionTechnical/Core
骨粗鬆症コツソショウショウOsteoporosisTechnical/Core
血栓症ケッセンショウThrombosisTechnical/Core
前立腺肥大症ゼンリツセンヒダイショウProstrate enlargementTechnical/Core
動脈硬化症ドウミャクコウカショウAtherosclerosisTechnical
筋緊張症キンキンチョウショウMyotoniaTechnical
鎌状赤血球症かまジョウセッケッキュウショウSickle-cell diseaseTechnical
脳症ノウショウEncephalopathyTechnical
陰茎折症インケイセッショウPenile fractureTechnical

125. 骨粗鬆症で食べてはいけないものはありますか?
Are there things you shouldn’t eat with osteoporosis?

126. 肥満者は、正常体重の方に比べて、3倍ほど多く高血圧症になると言われている。
It is said that obese individuals, compared to people at a normal weight, end up having high blood pressure 3 times more often.

■The Suffix ~病

WordReadingTranslationImportance
心臓病シンゾウビョウHeart diseaseTechnical/Core
皮膚病ヒフビョウSkin diseaseTechnical/Core
白血病ハッケツビョウLeukemiaTechnical/Core
歯周病シシュウビョウGum diseaseTechnical/Core
糖尿病トウニョウビョウDiabetesTechnical/Core
眼病ガンビョウEye diseaseTechnical
禿頭病トクトウビョウAlopeciaTechnical
伝染病デンセンビョウTransmissible diseaseTechnical/Core
疫病エキビョウEpidemicTechnical/Core

127. 歯茎が縮むのには、さまざまな原因がありますが、歯周病によるケースが多いです。
There are several reasons for the gums to shrink, but there are many cases due to gum disease.

128. 病院で「白血病」と診断されていますか?
Have you been diagnosed with “leukemia” by a hospital?

129. 疫病で多くの国民の命が奪われた。
So many citizen lives were lost from the epidemic.

130. 心臓病右肩が痛くなるのはなぜですか。
Why is it that your right shoulder ends up hurting from heart disease?

The Motor System
運動器系

The motor system is characterized by bones (骨) and joints (関節), which form the skeleton 骨格・骨骼.  The skeleton, as in skeletonized remains (白骨化した遺体), is called 骸骨. You may also see the loanword スケルトン, but this may also be used to refer to the skeletons of buildings, which are usually called 骨組み. 

骨, when read as ほね, is a native word still used as the primary word for bones. However, its Sino-Japanese reading こつ is found in every anatomic word related to bones, and it can even be seen in isolation as the honorific word for bone(s) – お骨. The body is also full of cartilage (軟骨 = literally ‘soft bone’). In total, the adult human body has about 206 bones.  The most essential to know as a Japanese speaker are as follows:

WordReadingMeaningImportance
前頭骨ゼントウコツFrontal boneTechnical
蝶型骨チョウケイコツSphenoid boneTechnical
頭頂骨トウチョウコツParietal boneTechnical
側頭骨ソクトウコツTemporal boneTechnical
後頭骨 コウトウコツOccipital boneTechnical
頬骨キョウコツ
ほほぼね
つらぼね
Zygomatic bone
Cheekbone
Cheekbone
Technical
Core
Core/Dialectal
顴骨ケンコツ
カンコツ
Zygomatic boneTechnical
涙骨ルイコツLacrimal boneTechnical
口蓋骨コウガイコツPalatine boneTechnical
舌骨ゼッコツHyoid boneTechnical
肩胛骨ケンコウコツScapula
Shoulder blade
Technical/Core
尺骨シャッコツUlnaTechnical
上腕骨ジョウワンコツHumerusTechnical/Core
寛骨カンコツInnominate bone
Hipbone
Technical
仙骨センコツSacrumTechnical
尾骨ビコツCoccyx
Tailbone
Technical/Core
大腿骨ダイタイコツFemur
Thighbone
Technical
膝蓋骨 
膝のお皿
シツガイコツ
ひざのおさら
Patella
Kneecap
Technical
Core
脛骨ケイコツTibia
Shinbone
Technical
腓骨ヒコツFibulaTechnical
距骨キョコツTalus
Anklebone
Technical
踵骨ショウコツCalcaneus
Heel bone
Technical
立方骨リッポウコツCuboid boneTechnical
舟状骨シュウジョウコツScaphoid boneTechnical
脊柱
背骨
セキチュウ
せぼね
Spinal column
Back bone
Technical/Core
Technical/Core

131. 尾骨を押すと痛いです。
It hurts when I press on my tailbone.

132. 主人がバイク事故を起こし、左膝の皿を割ってしまった。
My husband got into a motorcycle accident and split his left kneecap.

133. 舌骨下顎咽頭の間に存在するU字形をしたである。
The hyoid bone is a u-shaped bone that exists in between the lower jaw and the pharynx.

134. 背骨骨折したら元に戻れるのでしょうか。
If you fracture your back bone, can it return back to normal?

■Important Joints

Important nervous system-related terminology includes:

WordReadingMeaningImportance
関節カンセツJointTechnical/Core
ふしJointCore
こぶしFistCore
拳骨ゲンコツKnucklesCore
顎関節ガクカンセツJaw jointTechnical
肩関節かたカンセツShoulder jointTechnical/Core
股関節コカンセツHip jointTechnical/Core
手関節シュカンセツWrist jointTechnical/Core
指節間関節シセツカンカンセツInterphalangeal jointTechnical
肘関節ひじカンセツElbow jointTechnical/Core
足関節あしカンセツ
ソクカンセツ
Ankle jointTechnical/Core
膝関節ひざカンセツ
シツカンセツ
Knee jointTechnical/Core
橈骨手根関節トウコツシュコンカンセツRadiocarpal jointTechnical
椎間関節ツイカンカンセツFacet jointTechnical

135. 教師は生徒の行為をとても許せず、を振り上げていた。
The teacher could not possibly forgive his student’s conduct, waving his fists.

136. よく捻挫をするのですが、足関節が硬いからですか。
I often get sprains, but is it because my ankle joints are stiff?

■Important Muscles/Tendons/Ligaments

Important muscle-related terminology includes:

WordReadingMeaningImportance
筋肉キンニクMuscleCore
筋(肉)繊維キン(ニク)センイMuscle sinewTechnical
すじMuscle sinewCore
筋骨12キンコツMuscles and bonesCore
ケンTendonTechnical/Core
靭帯ジンタイLigamentTechnical/Core
表情筋ヒョウジョウキンMimetic muscleTechnical
僧帽筋ソウボウキンTrapezius muscleTechnical
三角筋サンカクキンDeltoid muscleTechnical
大胸筋ダイキョウキンMajor pectoral muscleTechnical
心筋シンキンCardiac muscleTechnical
腹筋フッキンAbdominal musclesCore
腹直筋フクチョクキンAbdominal rectus muscleTechnical
上腕二頭筋ジョウワンニトウキンUpper arm bicepsTechnical
橈側手根屈筋トウソクシュコンクッキンFlexor carpi radialis muscleTechnical
大腿四頭筋ダイタイシトウキンQuadricepsTechnical
膝蓋靭帯シツガイジンタイPatellar ligamentTechnical
前脛骨筋ゼンケイコツキンTibialis anterior muscleTechnical
ヒラメ筋ひらめキンSoleus muscleTechnical
後頭筋コウトウキンOccipitalis muscleTechnical
広背筋コウハイキンLatissimus dorsiTechnical
大殿筋ダイデンキンGluteus maximusTechnical
大腿二頭筋ダイタイニトウキンBiceps femorisTechnical
腓腹筋ヒフクキンGastrocnemius muscleTechnical
アキレス腱あきれすケンAchilles’ tendonTechnical/Core
腱鞘ケンショウSheath of tendonTechnical

137. アキレス腱が破裂したり、足首が骨折したり、捻挫したりした場合は、ウォーキングブーツを履いて、怪我をした箇所にかかる歩行圧を下げることができます。
Whenever you’ve torn your Achilles’ tendon, broken your ankle or sprained it, by wearing walking boots, you can lower the pressure from walking that is placed on the injured area.

138. の動きで周りの筋肉を鍛えましょう。
Train the muscles of your tongue and those around your mouth via mouth motions.

Organelles 
細胞小器官

The human eukaryotic cell (真核細胞) is composed of various organ-like structures called organelles, which in turn are referred to as 細胞(小)器官 or オルガネラ. These are membrane (膜) covered structures (構造体). Each organelle possesses its own unique function, in a way behaving as its own life form (生命個体). 

For instance, the organelle responsible for oxygen absorption (酸素の吸収) and release of carbon dioxide (二酸化炭素の排出) is the mitochondria (ミトコンドリア).  Below are the organelles you should be most familiar with, especially if your field is in biology. 

(細胞)核 NucleusResponsible for storage (保存) and transmission (伝達) of genetic information (遺伝情報). 
核小体
(核)仁
NucleolusA molecule (分子) dense area in the center of the nucleus where rRNA transcription (転写) and ribosome construction occurs.
ゴルジ体 Golgi bodyAlso known as ゴルジ装置 (Golgi apparatus), ゴルジ複合体 (Golgi complex), or 網状体 (dictyosome), its functions include the processing (プロセシング) of proteins (蛋白質) composing the ribosome as well as the modification of protein sugar-chains (糖鎖修飾) that are then excreted (分泌) outside of the cell. 
エンドソームEndosomeA kind of vesicle (小胞) that sorts material before reaching the lysosome. 
リソソームLysosomeAlso called リソゾーム, ライソソーム、 ライソゾーム, or 水解小体, it is a kind of vesicle that breaks down biomolecules 生体物質. 
ミトコンドリアMitochondriaMany cells have hundreds whereas some have none. They also possess their own DNA called ミトコンドリアDNA. Its technical Japanese name is 糸粒体.
葉緑体ChloroplastAlso known as クロロプラスト, though not a part of animal cells, it is a very important organelle to plants as it is where photosynthesis (光合成) takes place.
ペルオキシソームPeroxisomeAn organelle with metabolic pathway functions such as the beta-oxidation (β酸化) of very-long-chain-fatty acids (超長脂肪酸), the composition (合成) of cholesterol (コレステロール) and bile (胆汁),  the metabolism (代謝) of amino acids (アミノ酸), etc.
小胞VesiclesMany kinds of vesicles exist. Common functions include metabolism, material transport (物質輸送), and temporary storage (貯蓄) of cell biproducts (合成産物).
粗面小胞体Rough-surfaced endoplasmic reticulumEndoplasmic reticulum which ribosomes are attached. Materials secreted from it are transported to the Golgi body. 
滑面小胞体Smooth-surfaced endoplasmic reticulumEndoplasmic reticulum void of ribosomes. It synthesizes lipids (脂質), phospholipids (燐脂質), and steroids (ステロイドホルモン). 
液胞VacuoleCommon functions include:
①Isolating (隔離) materials that may be harmful (有害) to the cell.
②Containing (保管) and exporting (排出) waste products (不要物).
③Maintaining (維持) an acidic (酸性) internal pH.
④Containing small molecules (低分子). 
⑤Maintaining internal hydrostatic pressure (内部の静水圧)/turgor within the cell (細胞の膨圧).
微小管Microtubule Involved in the cytoskeleton (細胞骨格) as well as a cell dividing apparatus (分裂装置).
中心体CentrosomeAlso known as 微小管形成中心, it is the main microtubule organizing center of the animal cell.
リボソームRibosomeOrganelle responsible for protein synthesis by translating (翻訳) genetic information from mRNA. 

Cancer 癌

At times, cells of the body lose the control mechanisms involved in their replication (増殖).  Tumors can be roughly divided into two kinds: benign tumors (良性腫瘍) and malignant tumors (悪性腫瘍), with malignant tumors often becoming 浸潤性腫瘍 (invasive tumors) which then metastasize (転移) throughout the body. 

Malignant tumors are colloquially known as cancer (癌). In turn, cancer can be categorized by two broad types:

  1. 癌腫 (carcinoma) : malignant cells that form from epithelial cells.  
  2. 肉腫 (sarcoma): malignant cells that from from non-epithelial cells. 

Any part of the body is susceptible to becoming cancerous. Early-stage cancer is known as 早期癌 and advanced cancer is known as 進行癌, and the worst of which are terminal cancer (末期癌). The emergence of cancer is called 発癌 – carcinogenic = 発癌性, carcinogen = 発癌(性)物質. The opposite of 発癌性 is 抗癌性.

Most cancer names are very straightforward, being a combination of the body part + ~癌. As such, we will only cover a handful of names that impact human lives the most. 

肺癌Lung cancer胃癌Stomach cancer
乳癌Breast cancer甲状腺癌Thyroid cancer
子宮癌Uterine cancer前立腺癌Prostate cancer
皮膚癌Skin cancer口腔癌Oral cancer
肝細胞癌Hepatoma膵(臓)癌Pancreatic cancer
膀胱癌Bladder cancer食道癌Esophageal cancer
腸癌Intestinal cancer卵巣癌Ovarian cancer
肝臓癌Liver cancer咽頭癌Throat cancer
結腸癌Colon cancer舌癌Tongue cancer

139. 前立腺癌で死亡する確率が高い。
The probability of dying from prostate cancer is high.

140. 食道癌が再発した場合、その後の生存率が低下するとされています。
It’s described that in the event esophageal cancer recurs that one’s chance of survival thereafter decreases.

■Ulcers 潰瘍

Ulcers are similar to cancer in that they are unnatural cell growths caused either by injury and/or infection. The most common ulcers that people face as oral ulcers (口腔潰瘍) and stomach ulcers (胃潰瘍), but they can appear in various parts of the body. 

141. 胃潰瘍で薬で治るの?
Do stomach ulcers heal with medicine?

  1. はだかみ may also figuratively refer to a “naked sword.” ↩︎
  2. 裸 itself has several idiomatic usages which include meaning “concealing nothing,” “being penniless,” “being frank, ” etc. ↩︎
  3. 赤裸々 may also figuratively mean “unvarnished truth.” ↩︎
  4. When read as ショウジン, 生身 refers to the physical body of Buddha. ↩︎
  5. The phrase 首になる literally means “to be beheaded,” but it is colloquially used to mean “to be fired (from a job).” In the literal sense, you may see it spelled as 馘になる, with 馘 meaning “decapitation.” ↩︎
  6. The word ひこ on seldom occasion may also refer to the “uvula,” in which case it may be spelled confusingly as 小舌. ↩︎
  7. みみせせ is a rare instance in which a native word is present for such an anatomically obscure part of the skull, but neither this word nor its proper scientific wording, 乳様突起骨, are readily understood by speakers. ↩︎
  8. In Old Japanese, “limb” 肢 was expressed with a native word – え – which is now preserved in the word for branch 枝(えだ). ↩︎
  9. In Old Japanese, 腿 (thigh) was はぎ. The parts of both thighs which face each other was called 向ははぎ. Then, はぎ underwent semantic shift to refer to “calf” in the compound 脹脛(ふくらはぎ), which rendered 向かはぎ synonymous with (向う)脛. ↩︎
  10. Irregularly, the Sino-Japanese word 肺 is paired with the native prefixes 左(ひだり)~ and 右(みぎ)~ for “left” and “right” respectively as opposed to their Sino-Japanese iterations. However, in the far less frequently seen 左肺臓 and 右肺臓, the respective Sino-Japanese readings サ and ウ are used. ↩︎
  11. Traditionally, 肌色 refers to the skin tone of the average Japanese person. ↩︎
  12. When 筋骨 is read as すじぼね, it means “cartilage,” but this native alternative to 軟骨 has fallen out of use. ↩︎