GROSS ANATOMY

GROSS ANATOMY

PELVIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the artery indicated by the arrow?
A
superior gluteal artery
B
inferior gluteal artery
C
Arteria iliolumbar
D
None of the above
Explanation: 

Detailed explanation-1: -The iliolumbar artery classically arises from the posterior radix of the internal iliac artery and it extends in an oblique fashion superiorly and laterally, in front of the sacroiliac joint and the lumbosacral trunk. It crosses the obturator nerve and the external iliac artery and vein.

Detailed explanation-2: -Despite considerable variation in these arteries, six branches of the anterior division of the internal iliac artery commonly exist. These branches include the umbilical artery, obturator artery, inferior vesical artery (in males), middle rectal artery, internal pudendal artery, and inferior gluteal artery.

Detailed explanation-3: -The internal iliac arteries are the major arteries of the pelvis, and together with their many branches, supply the blood to the major organs and muscles of the pelvis. The internal iliac arteries are branches of the common iliac arteries, which themselves are branches from the aorta.

Detailed explanation-4: -The internal iliac artery is one of the two divided parts of the common iliac artery, it passes medially over the pelvic brim and runs downward to the pelvic cavity. At the upper margin of the greater sciatic foramen, it is divided anteriorly and posteriorly.

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