| 单词 | internal sphincter muscle of anus |
| 释义 | internal sphincter muscle of anusn.A smooth muscle ring formed by an increase of the circular fibers of the rectum, situated at the upper end of the anal canal. Words nearby internal sphincter muscle of anusinternal revenue, Internal Revenue Service, internal rhyme, internal secretion, internal spermatic artery, internal sphincter muscle of anus, internal stress, internal thoracic vein, internal traction, internal urethral opening, internal version The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. |
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