Last Updated
：2026/01/07
瞳孔括約筋
Hiragana
どうこうかつやくきん
Noun
Japanese Meaning
瞳孔を縮小させる働きをする、虹彩に存在する輪状の筋肉。縮瞳を引き起こす。
Easy Japanese Meaning
ひとみを小さくするためにうごく、めのなかのまるいきんにく
Chinese (Simplified) Meaning
虹膜内的环形平滑肌，收缩使瞳孔缩小 / 控制瞳孔缩小的肌肉
Chinese (Traditional) Meaning
虹膜內使瞳孔縮小的環狀平滑肌 / 控制瞳孔收縮的括約肌
Korean Meaning
동공을 수축시키는 홍채의 고리 모양 평활근 / 동공 크기를 줄여 들어오는 빛의 양을 조절하는 근육
Vietnamese Meaning
cơ thắt đồng tử / cơ vòng ở mống mắt làm co nhỏ đồng tử / cơ gây co hẹp đồng tử
Tagalog Meaning
kalamnang nagpapaliit sa balintataw / singsing na kalamnan sa iris na nagsasara sa balintataw / kalamnan ng mata na kumikipot sa pupila
Sense（1）
a pupillary sphincter
（ canonical ）
（ romanization ）
（ hiragana ）
Quizzes for review
See correct answer
瞳孔括約筋
See correct answer
The pupillary sphincter adjusts the size of the pupil according to the intensity of light.
The pupillary sphincter adjusts the size of the pupil according to the intensity of light.
See correct answer
瞳孔括約筋は、光の強さに応じて瞳孔の大きさを調節します。
Japanese - English
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