Dorsal nerve of the penis

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.

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
Frompudendal nerve
Identifiers
Latinnervus dorsalis penis
TA98A14.2.07.042M
TA26563
FMA21869
Anatomical terms of neuroanatomy

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 couldn’t have been counted due to the natural degeneration of tissues found in old people.[1]

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

See also

References
  1. Tunçkol, Elçin; Purkart, Leopold; Eigen, Lennart; Vida, Imre; Brecht, Michael (2023). "Fiber counts and architecture of the human dorsal penile nerve". Scientific Reports. 13 (1). doi:10.1038/s41598-023-35030-w. ISSN 2045-2322. PMC 10232416.

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


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