perineal artery การใช้

• Muscles in the penis relax, allowing blood from perineal arteries to rush in.
• The internal pudendal gives rise to the perineal artery.
• Some sources consider the urethral artery a direct branch of the internal pudendal artery, while others consider it a branch of the perineal artery.
• As it crosses the superficial transverse perineal muscle it gives off the " transverse perineal artery " which runs transversely on the cutaneous surface of the muscle, and anastomoses with the corresponding vessel of the opposite side and with the perineal and inferior hemorrhoidal arteries.
• 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 with the perineal branch of the posterior femoral cutaneous nerve.