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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).
This keeps the artery coiled, and little blood flow occurs, instead routing to arteriovenous shunts to the deep dorsal vein. Parasympathetic stimulation removes the tonic state and allows vasodilation of the intimal cushion. Blood now pools in the corpora cavernosa, resulting in erection. The valves prevent backflow in the now-tortuous route ...
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.
Penile plethysmography (PPG) or phallometry is a measurement of blood flow to the penis, typically used as a proxy for measurement of sexual arousal.The most commonly reported methods of conducting penile plethysmography involves the measurement of the circumference of the penis with a mercury-in-rubber or electromechanical strain gauge, or the volume of the penis with an airtight cylinder and ...
The superficial dorsal vein of the penis belongs to the superficial drainage system. It is located within the superficial dartos fascia, a continuation of the Colles' fascia, on the dorsal surface of the penis and, in contrast to the deep dorsal vein, it lies outside the deeper Buck's fascia. [2]
After vasocongestion, the now-engorged erectile tissue presses against and constricts the veins that carry blood away from the penis. More blood enters than leaves the penis until an equilibrium is reached where an equal volume of blood flows into the dilated arteries and out of the constricted veins; a constant erectile size is achieved at ...
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]