Urethral crest
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| Urethral crest | |
|---|---|
 | |
| 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 |
The urethal crest is an anatomical feature present in the urinary system of both males and females.
In males, the urethral crest is known as the crista urethralis masculinae, or the crista phallica, and is a longitudinal fold on the posterior wall of the urethra extending from the uvula of the bladder through the prostatic urethra..[1] 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.[1]
In females, it is known as the crista urethralis femininae, and is a conspicuous longitudinal fold of mucosa on the posterior wall of the urethra.[1]
Additional images
 Vesiculæ seminales and ampullæ of ductus deferentes, seen from the front. |
External links
- SUNY Labs 44:st-2200 - "The Male Pelvis: Urethral crest"
- Norman/Georgetown pelvis
References
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
