Dorsal nerve of the penis
Encyclopedia
The dorsal nerve of the penis is the deepest division 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
.
It innervates the skin of the penis.
Pudendal nerve
The pudendal nerve is a sensory and somatic nerve in the pelvic region which is a large branch of the sacral plexus that innervates the external genitalia of both sexes, as well as sphincters for the bladder and the rectum...
; it accompanies the internal pudendal artery
Internal pudendal artery
The internal pudendal artery is an artery that branches off the internal iliac artery, providing blood to the external genitalia.The internal pudendal artery is the terminal branch of the anterior trunk of the internal iliac artery...
along the ramus of the ischium
Ramus of the ischium
Ramus of the ischium can refer to:* Superior ramus of the ischium* Inferior 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
Fascia
A fascia is a layer of fibrous tissue that permeates the human body. A fascia is a connective tissue that surrounds muscles, groups of muscles, blood vessels, and nerves, binding those structures together in much the same manner as plastic wrap can be used to hold the contents of sandwiches...
of the urogenital diaphragm
Urogenital diaphragm
Older texts have asserted the existence of an urogenital diaphragm, also called the triangular ligament, which was described as a layer of the pelvis that separates the deep perineal sac from the upper pelvis, lying between the inferior fascia of the urogenital diaphragm and superior fascia of the...
.
Piercing the inferior layer it gives a branch to the corpus cavernosum penis
Corpus cavernosum penis
The corpus cavernosum penis is one of a pair of sponge-like regions of erectile tissue which contain most of the blood in the penis during penile erection...
, and passes forward, in company with the dorsal artery of the penis
Dorsal artery of the penis
The Dorsal Artery of the Penis is a branch of the internal pudendal artery which ascends between the crus penis and the pubic symphysis, and, piercing the inferior fascia of the urogenital diaphragm, passes between the two layers of the suspensory ligament of the penis, and runs forward on the...
, between the layers of the suspensory ligament
Suspensory ligament of the penis
In males, the suspensory ligament of the penis is attached to the pubic symphysis, which holds the penis close to the pubic bone and supports it when erect....
, on to the dorsum of the penis
Penis
The penis is a biological feature of male animals including both vertebrates and invertebrates...
, and ends on the glans penis
Glans penis
The glans penis is the sensitive bulbous structure at the distal end of the penis. The glans penis is anatomically homologous to the clitoral glans of the female...
.
It innervates the skin of the penis.