Tunica albuginea (penis)

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Tunica albuginea (penis)
Transverse section of the penis.
The penis in transverse section, showing the bloodvessels.
Latin tunica albuginea corporum cavernosorum, tunica albuginea corporis spongiosi
Gray's subject #262 1250
Dorlands/Elsevier t_22/12831755

The fibrous envelope of the corpus cavernosum urethræ (or tunica albuginea) is thinner, whiter in color, and more elastic than that of the corpora cavernosa penis.

The trabeculæ are more delicate, nearly uniform in size, and the meshes between them smaller than in the corpora cavernosa penis: their long diameters, for the most part, corresponding with that of the penis.

The external envelope or outer coat of the corpus cavernosum urethræ is formed partly of unstriped muscular fibers, and a layer of the same tissue immediately surrounds the canal of the urethra.

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 As such, some of the information contained herein may be outdated.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