GROSS ANATOMY

Detailed explanation-1: -The SGA is a terminal branch of the internal iliac artery and exits the pelvis through the greater sciatic foramen. After its exit, the SGA divides into deep and superficial branches. The superficial branch continues above the piriformis muscle into the gluteus maximus muscle.

Detailed explanation-2: -Superior gluteal artery: it is the largest branch of the internal iliac artery and essentially a continuation of the posterior trunk.

Detailed explanation-3: -Origin and course The superior gluteal artery originates as a branch from the posterior division of the internal iliac artery. It advances posteriorly to pierce the pelvic fascia between the lumbosacral trunk and the first sacral nerve root (S1).

Detailed explanation-4: -The superior gluteal artery gives off two terminal branches; superficial and deep. Via these branches, the artery supplies the gluteal muscles and the tensor fasciae latae, as well as some skin over the sacrum. Morever, it forms numerous arterial anastomoses with other arteries of the gluteal area.

Detailed explanation-5: -"three urinary": umbilical artery, superior vesical artery, inferior vesical artery. "three visceral": uterine artery, vaginal artery, middle rectal artery. More items •17-Nov-2022