Navicular fossa of male urethra

Navicular fossa of male urethra
The male urethra laid open on its anterior (upper) surface.
Details
Latin	fossa navicularis urethrae
Identifiers
Dorlands /Elsevier	12376405
TA
TH	{{#property:P1694}}
TE	{{#property:P1693}}
FMA	{{#property:P1402}}
Anatomical terminology [[[d:|edit on Wikidata]]]

The cavernous portion of the urethra is narrow, and of uniform size in the body of the penis, measuring about 6 mm in diameter; it is dilated behind, within the bulb, and again anteriorly within the glans penis, where it forms the fossa navicularis urethræ.

The navicular fossa is the spongy part of the male urethra located at the glans penis portion. It is essentially the part right before the external urethral orifice. It is lined by stratified squamous, non-keratinizing epithelium when viewed histologically.

During development, the glans of the penis is initially solid but cannulates to give rise to the navicular fossa.

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links

• Anatomy photo:44:06-0205 at the SUNY Downstate Medical Center - "The Male Pelvis: The Urethra"
• figures/chapter_35/35-1.HTM — Basic Human Anatomy at Dartmouth Medical School