rectourethral muscle

rec·to·u·re·thral muscle

(rĕk′tō-yo͝o-rē′thrəl)
n.
Smooth muscle fibers that pass forward from the longitudinal muscle layer of the rectum to the spongy membrane just beyond the bulb of the penis.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.