Prostatic urethra

Prostatic urethra
The male urethra laid open on its anterior (upper) surface. (Prostatic part labeled at upper right.)
1: Vas deferens 2: Seminal vesicle 3: Base of the prostate 4: Apex of the prostate 5: Prostatic urethra
Details
Latin	pars prostatica urethrae
Identifiers
Dorlands /Elsevier	p_07/12617709
TA
TH	{{#property:P1694}}
TE	{{#property:P1693}}
FMA	{{#property:P1402}}
Anatomical terminology [[[d:|edit on Wikidata]]]

The prostatic urethra, the widest and most dilatable part of the urethra canal, is about 3 cm. long.

It runs almost vertically through the prostate from its base to its apex, lying nearer its anterior than its posterior surface; the form of the canal is spindle-shaped, being wider in the middle than at either extremity, and narrowest below, where it joins the membranous portion.

A transverse section of the canal as it lies in the prostate is horse-shoe-shaped, with the convexity directed forward.

Additional images

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  Lobes of prostate

• 

  Zones of prostate

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  Structure of the penis

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  Vertical section of bladder, penis, and urethra.

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  Vesiculæ seminales and ampullæ of ductus deferentes, seen from the front.

References

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

External links

• Anatomy image: malepel2-4 at the College of Medicine at SUNY Upstate Medical University
• Cross section image: pelvis/pelvis-e12-15 - Plastination Laboratory at the Medical University of Vienna
• Anatomy photo:44:05-0201 at the SUNY Downstate Medical Center - "The Male Pelvis: The Prostate Gland"