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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.
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).
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 dorsal vein of the penis belongs to the intermediate drainage system of the penis, along with the circumflex veins and their emissary veins. [1] It runs directly beneath the superficial dorsal vein, with a layer of connective tissue, the deep fascia of the penis, separating the two vessels.
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 ...
Among all primates, the human penis is the largest in girth, but is comparable to the chimpanzee penis and the penises of certain other primates in length. [13] Penis size is affected by genetics , but also by environmental factors such as fertility medications [ 14 ] [ unreliable medical source? ] and chemical/pollution exposure.
The artery of bulb of penis (artery of the urethral bulb or bulbourethral artery) is a short artery of large caliber which arises from the internal pudendal artery between the two layers of fascia (the superior and inferior) of the urogenital diaphragm.
Inside the penis is the urethra, which is used to ejaculate semen and to excrete urine. Both substances exit through the meatus. When a male becomes sexually aroused, erection occurs because sinuses within the erectile tissues of the penis (corpora cavernosa and corpus spongiosum) become filled with blood.