肛门扩约肌(Sphincter Ani muscle)
肛门扩约肌(Sphincter Ani muscle)
肌肉 | 起点 | 止点 | 动作 | 动脉 | 神经 | 拮抗肌 | 备注 |
External Sphincter Ani muscle(肛门外扩约肌) | - | - | - | pudendal nerve(阴部神经)的直肠下神经(inferior rectal nerve) | |||
internal Sphincter Ani muscle(肛门内扩约肌) | - | - | - | pudendal nerve(阴部神经) |
资料来源：promiscuouseating
