肛こう門もん弁べん

noun

anal valve; valvulae anales

Anatomical term referring to the small folds or valves in the anal canal. Used in medical and biological contexts.

• 肛こう門もん弁べんは直ちょく腸ちょうと肛こう門もんの境きょう界かいにある構こう造ぞうです。

  The anal valves are structures located at the boundary between the rectum and the anus.