括约肌;
Methods The partial sphincter ani externa muscle was replaced by the bulbocavernosus muscle.
方法以球海绵体肌替代部分肛门括约肌。
However , because striated urethral sphincter has similar innervation, patients are exercising this important muscle as well.
由于提肛肌和外括约肌的神经支配类似, 所以在收缩提肛肌的同时,外括约肌也得到锻炼.
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