Dorsal nerve of the penis

Dorsal nerve of the penis
Pudendal nerve, its course through the lesser sciatic foramen, and branches, including dorsal nerve of the penis at bottom left.
Transverse section of the penis. (Dorsal nerve visible at top.)
Details
From	pudendal nerve
Innervates	penis
Identifiers
Latin	nervus dorsalis penis
TA98	A14.2.07.042M
TA2	6563
FMA	21869
Anatomical terms of neuroanatomy [edit on Wikidata]

The dorsal nerve of the penis is the deepest of three divisions of the pudendal nerve; it accompanies the internal pudendal artery along the ramus of the ischium; it then runs forward along the margin of the inferior ramus of the pubis, between the superior and inferior layers of the fascia of the urogenital diaphragm.

Piercing the inferior layer it gives a branch to the corpus cavernosum penis, and passes forward, in company with the dorsal artery of the penis, between the layers of the suspensory ligament, on to the dorsum of the penis, and ends on the glans penis.^[1]

It innervates the skin of the penis. In humans, it has 8290 ± 2553 axons, in 25–45 loosely packed nerve bundles, half of which are myelinated. The researches were conducted on volunteers that donated tissues after death, therefore some of the nerve endings could not have been counted due to the natural degeneration of tissues found in old people.^[1]

Gallery

• 
  Deep and superficial dissection of the lumbar plexus
• 
  Sacral plexus of the right side (dorsal nerve of penis visible at bottom left)

See also

• Cavernous nerves of penis
• Dorsal nerve of the clitoris

References

This article incorporates text in the public domain from page 968 of the 20th edition of Gray's Anatomy (1918)

External links

• Anatomy figure: 42:01-02 at Human Anatomy Online, SUNY Downstate Medical Center - "Cross-section of the penis."
• Anatomy image:9466 at the SUNY Downstate Medical Center
• Anatomy image:9478 at the SUNY Downstate Medical Center
• perineum at The Anatomy Lesson by Wesley Norman (Georgetown University) (maleugtriangle4)
• figures/chapter_32/32-2.HTM: Basic Human Anatomy at Dartmouth Medical School
• figures/chapter_32/32-3.HTM: Basic Human Anatomy at Dartmouth Medical School

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