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Arteries and veins of the penis. The penile artery (also known as the common penile artery) is the artery that serves blood to the penis. It is a terminal branch of the internal pudendal artery, along with the scrotal artery. It subdivides into three arteries, the bulbourethral artery, the dorsal artery of the penis and the cavernosal artery.
It runs directly beneath the superficial dorsal vein, with a layer of connective tissue, the deep fascia of the penis, separating the two vessels. It receives oxygen-depleted blood from the glans and corpora cavernosa and courses backward in the middle line accompanied by the dorsal arteries on each side. [citation needed]
It passes between the crus penis [2] and the pubic symphysis [citation needed] of the pelvis to reach the dorsal surface of the corpus cavernosus penis. [2]As it pierces the perineal membrane, it (depending upon the source) passes between the two layers of the suspensory ligament of the penis, [citation needed] or pierces the lateral lamina of the suspensory ligament of penis.
The deep artery of the penis one of the terminal branches of the internal pudendal artery. [citation needed] It arises from the internal pudendal artery posterior to the inferior edge of the symphysis pubis [1] while the internal pudendal artery is situated between the two fasciæ of the urogenital diaphragm (deep perineal pouch).
On entering the cavernous structure from the deep artery of the penis the arteries divide into branches, which are supported and enclosed by the trabeculae.Some of these arteries end in a capillary net-work, the branches of which open directly into the cavernous spaces; others assume a tendril-like appearance, and form convoluted and somewhat dilated vessels, which were named by Rosenmüller ...
The corpora cavernosa are innervated by lesser and greater cavernous nerves and form most of the penis containing blood vessels that fill with blood to help make an erection. [8] The crura are the proximal parts of the corpora cavernosa. The corpus spongiosum is an erectile tissue surrounding the urethra.
The internal pudendal artery has numerous branches including the artery of the bulb of the penis immediately before the urethral and the dorsal artery of the penis more distally. [2] In the male, it penetrates the perineal membrane and provides blood to the urethra and nearby erectile tissue to the glans. [3]
The corona and the neck are highly vascularized areas of the penis. The axial and dorsal penile arteries merge together at the neck before entering the glans. [8] Branches of the dorsal artery of the penis curve around the distal shaft to enter the frenulum and the glans from its ventral surface. [9]