scrotum

dartos fascia layer a subcutaneous tissue

forms folds skin forms fold to provide flexibility

excess skin extra skin allows for erection of the penis

Median scrotal raphe central line of the scrotum (line alba of scrotum)

fat free tissue skin is free of fatty tissue to aid thermoregulation

thermoregulation maintains cooler temperatures for sperm production

Scrotum Skin sac in front of the anus and behind the penis

scrotal septum Divides scrotum into two chambers, each with a testis, epididymis, and spermatic cord

Scrotal Raphe Skin ridge from fused genital swellings

testis Site of sperm production

Epididymis Transports and stores sperm from the testis.

Spermatic Cord Contains vessels, nerves, and ducts connected to the testes.

anterior scrotal artery from external pudendal (femoral).

posterior scrotal artery From internal pudendal (internal iliac)

cremasteric artery From inferior epigastric, in spermatic cord, anastomoses with vesicular and testicular arteries

scrotal veins drain into the external pudendal vein

anterior scrotal nerves from genital branch of genitofemoral nerve and ilioinguinal nerve.

posterior scrotal nerves from perineal branch of pudendal nerve and posterior femoral cutaneous nerve

Dartos Fascia subcutaneous layer with elastic fibers, smooth muscle, and collagen; forms the scrotal septum

External Spermatic Fascia Derived from the aponeurosis of the external oblique muscle.

Cremasteric Fascia Derived from the internal oblique and transversus abdominis aponeuroses.

Cremaster Muscle Lifts the testes, contains fibers from the internal oblique

Internal Spermatic Fascia derived from the fascia transversalis.

Tunica Vaginalis Serous layer of the scrotum, with parietal and visceral layers derived from peritoneum.

Tunica Albuginea fibrous capsule covering only the testes

Umbilical Artery Supplies bladder, becomes medial umbilical ligament.

Obturator Artery Supplies pelvic muscles and hip.

Common Trunk Gives inferior vesical, middle rectal, vaginal arteries

Uterine Artery Supplies uterus, branch to vas deferens

Internal Pudendal Artery Supplies rectum, perineum, genitalia

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