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Surgical Anatomy
September 2000

September 2000

Arch Surg. 2000;135(9):1105. doi:10.1001/archsurg.135.9.1105

The abdominal aorta originates at the level of the twelfth thoracic vertebra and bifurcates at lumbar vertebra 4. The bifurcation of the aorta with respect to an external landmark is at the level of the umbilicus.1