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The perineal artery (superficial perineal artery) arises from the internal pudendal artery, and turns upward, crossing either over or under the superficial transverse perineal muscle, and runs forward, parallel to the pubic arch, in the interspace between the bulbospongiosus and ischiocavernosus muscles, both of which it supplies, and finally divides into several posterior scrotal branches ...
Many of the arteries, veins, nerves, and muscles in the leg are named according to what bone they are near (e.g. tibialis anterior and the tibial nerve are near the tibia). So the artery that runs near the smaller leg bone had two names: the peroneal artery and the fibular artery.
The perineal body (or central tendon of perineum) is a pyramidal fibromuscular mass in the middle line of the perineum at the junction between the urogenital triangle and the anal triangle. In males, it is found between the bulb of the penis and the anus ; in females, it is found between the vagina and anus, and about 1.25 cm (0.49 in) in front ...
The internal pudendal artery branches off the internal iliac artery, the main artery of the pelvis, and supplies blood to the sex organs. [1] The internal pudendal artery gives rise to the perineal artery [2] and the inferior rectal artery. [1] The superficial external pudendal artery arises from the medial side of the femoral artery.
The major branch of the perineal nerve is the posterior scrotal/posterior labial. They pierce the fascia of the urogenital diaphragm , and run forward along the lateral part of the urethral triangle in company with the posterior scrotal branches of the perineal artery ; they are distributed to the skin of the scrotum or labia and communicate ...
The artery to the bulb of the vestibule originates from the perineal artery and pierces the perineal membrane to travel towards the vestibule of the vagina. [4] The deep and dorsal artery of clitoris are the two terminal branches of the internal pudendal artery which pierce the perineal membrane to supply the clitoris. [5]
(Urogenital triangle is roughly equal to top half of diagram.) ... Superficial and deep perineal pouch; ... The superficial branches of the internal pudendal artery.
The anal triangle can be defined either by its vertices or its sides.. Vertices. one vertex at the coccyx bone; the two ischial tuberosities of the pelvic bone; Sides. perineal membrane (posterior border of perineal membrane forms anterior border of anal triangle)