Navicular fossa of male urethra
| Navicular fossa of male urethra | |
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| The male urethra laid open on its anterior (upper) surface. | |
| Latin | fossa navicularis urethrae |
| Gray's | subject #256 1235 |
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.
External links
- SUNY Labs 44:06-0205 - "The Male Pelvis: The Urethra"
- Human anatomy at Dartmouth figures/chapter_35/35-1.HTM
This article incorporates text from a public domain edition of Gray's Anatomy.
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