sphincter muscles

常见例句

• A ring of muscle, the cardiac sphincter, surrounds the esophagus at this point.
  此处有一肌肉环即贲门括约肌围绕着食道。
• Some surgeries and drugs could lead to the sphincter of Oddi dysfunction.
  某些外科手术或药物会引起奥狄氏括约肌机能障碍。
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