puborectalis
noun
pu·bo·rec·ta·lis
| \ ˌpyü-bō-rek-ˈtā-ləs
\
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Medical Definition of puborectalis
: a band of muscle fibers that is part of the pubococcygeus, that passes from the pubic symphysis to interdigitate with the contralateral band of fibers forming a sling around the rectum at its junction with the anal canal, and that acts to hold the rectum and anal canal at right angles to each other except during defecation