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【括】
手
-6-9
Word
括約肌
Pronunciation
ㄎㄨㄛ
ˋ
ㄩㄝ ㄐㄧ
▶️
Definition
一種環狀肌。位於賁門、幽門及肛門,能收縮和舒張,為控制食物通過或排泄物排出的關卡。