Spongy urethra

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Spongy urethra
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The male urethra laid open on its anterior (upper) surface.
Latin pars spongiosa urethrae masculinae, pars cavernosa
Gray's subject #256 1234
Precursor Urogenital folds
Dorlands/Elsevier p_07/12617822

The spongy urethra (cavernous portion of urethra, penile urethra) is the longest part of the male urethra, and is contained in the corpus spongiosum urethraeæ.

It is about 15 cm. long, and extends from the termination of the membranous portion to the external urethral orifice.

Commencing below the inferior fascia of the urogenital diaphragm it passes forward and upward to the front of the symphysis pubis; and then, in the flaccid condition of the penis, it bends downward and forward.

It 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 urethrae.

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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 As such, some of the information contained herein may be outdated.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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