Urethral crest

Urethral crest

Infobox Anatomy
Name = PAGENAME
Latin = crista urethralis urethrae masculinae, crista urethralis urethrae femininae
GraySubject = 256
GrayPage = 1234


Caption = The male urethra laid open on its anterior (upper) surface. (Urethral crest labeled at upper right.)


Caption2 =
System =
MeshName =
MeshNumber =
DorlandsPre = c_62
DorlandsSuf = 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.. [ [http://www.biology-online.org/dictionary/Crista_urethralis_masculinae Crista urethralis masculinae - definition from Biology-Online.org ] ] 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. [ [http://education.yahoo.com/reference/gray/subjects/subject?id=256#p1234 The Male Urethra - Gray's Anatomy of the Human Body - Yahoo! Education ] ]

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. [ [http://www.biology-online.org/dictionary/Crista_urethralis_femininae Crista urethralis femininae - definition from Biology-Online.org ] ]


=Additional

External links

* - "The Male Pelvis: Urethral crest"
* (NormanAnatomyFig|malebladder)
*

References


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