Anatomy
·Abdomen
Abdominal Aorta & Its Branches
⭐ PREMIUM
The abdominal aorta runs T12–L4, giving paired and unpaired branches in a testable order.
LEVELS — high-yield
• T12: coeliac trunk; aortic hiatus of the diaphragm (also thoracic duct + azygos).
• L1: superior mesenteric artery (SMA) + renal arteries (just below).
• L3: inferior mesenteric artery (IMA).
• L4: bifurcation into common iliac arteries (at the level of the iliac crests / umbilicus).…
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