Urethral crest
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| Urethral crest | |
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| The male urethra laid open on its anterior (upper) surface. (Urethral crest labeled at upper right.) | |
| Latin | crista urethralis urethrae masculinae, crista urethralis urethrae femininae |
| Gray's | subject #256 1234 |
| Dorlands/Elsevier | c_62/13538713 |
Upon the posterior wall of the prostatic urethra is a narrow longitudinal ridge, the urethral crest, formed by an elevation of the mucous membrane and its subjacent tissue.
It is from 15 to 17 mm. in length, and about 3 mm. in height, and contains muscular and erectile tissue.
When distended, it may serve to prevent the passage of the semen backward into the bladder.
[edit] Additional images
 Vesiculæ seminales and ampullæ of ductus deferentes, seen from the front. |
[edit] External links
- SUNY Labs 44:st-2200 - "The Male Pelvis: Urethral crest"
- Norman/Georgetown pelvis
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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