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
September 2000. Arch Surg. 2000;135(9):1105. doi:10.1001/archsurg.135.9.1105
© 2023
Surgery in JAMA: Read the Latest
Customize your JAMA Network experience by selecting one or more topics from the list below.