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anal canal
anat.	肛管 (上端在盆膈平面接续直肠，下端终于肛门。肛管被肛门内括约肌与肛门外括约肌所包绕,平时处于收缩状态,有控制排便的作用)
life.sc.	★ 肛管

anal canal : 2 phrases in 1 subject

Surgery

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