The aorta bifurcates at which vertebral level?

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Multiple Choice

The aorta bifurcates at which vertebral level?

Explanation:
The abdominal aorta ends by dividing into two common iliac arteries at about the fourth lumbar vertebra. This landmark sits near the pelvic brim and roughly at the level of the umbilicus. Above this point the aorta carries all its visceral branches (like the superior and inferior mesenteric arteries arise above the bifurcation), and the aorta passes through the diaphragm at T12. Knowing that the bifurcation occurs at L4 helps you orient imaging and surgical approaches to the lower abdomen and pelvis.

The abdominal aorta ends by dividing into two common iliac arteries at about the fourth lumbar vertebra. This landmark sits near the pelvic brim and roughly at the level of the umbilicus. Above this point the aorta carries all its visceral branches (like the superior and inferior mesenteric arteries arise above the bifurcation), and the aorta passes through the diaphragm at T12. Knowing that the bifurcation occurs at L4 helps you orient imaging and surgical approaches to the lower abdomen and pelvis.

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