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It is formed by smaller superficial veins that merge on the dorsolateral aspect of the penis. It drains the prepuce and the skin of the shaft, and, running backward in the subcutaneous tissue , inclines to the right or left, and opens into the corresponding superficial external pudendal vein , a tributary of the great saphenous vein .
However, it is mostly thought that the defect is in the connective tissue of the tunica albuginea surrounding the penile veins, most importantly, the deep dorsal vein of the penis, a pair of cavernosal veins, and two pairs of para-arterial veins between the Buck's fascia and the tunica albuginea of the penis. [7]
Shaft: The pendulous part of the penis. It has two surfaces: dorsal (posterosuperior in the erect penis) and ventral or urethral (facing downwards and backwards on the flaccid penis). The ventral surface is marked by the penile raphe. The base of the shaft is supported by the suspensory ligament, which is attached to the pubic symphysis. [5]
The body of the penis is suspended from the pubic symphysis. [7] It has two surfaces; the dorsal and the ventral or urethral.The penile raphe runs on its ventral surface.. The body is surrounded by a bi-layered model of tunica albuginea in which a distal ligament buttresses the glans penis and plays an integral role to the penile fibroskeleton, and the structure is called "os analog", a term ...
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 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]
The subcutaneous tissue of penis (or superficial penile fascia) is continuous above with the fascia of Scarpa, and below with the dartos tunic of the scrotum and the fascia of Colles. It is sometimes just called the "dartos layer". [1] It attaches at the intersection of the body and glans. [2]
The glans penis receives blood from the internal pudental artery through its branch, the dorsal artery of the penis, which also supplies the foreskin, and the penile shaft. [24] Behind the corona, the terminal branches of the dorsal arteries anastomose with the axial arteries through perforating branches before they end in the glans. [25]
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