The four arteries on each side of the aorta inferior to the gonadal arteries and superior to the IMA are called the lumbar arteries. Which of the following is the correct name?

• A. Lumbar Arteries
• B. Intercostal Arteries
• C. Renal Arteries
• D. Hepatic Arteries

Answer: (A)

Lumbar arteries are the arteries that branch from the abdominal aorta to supply the posterior abdominal wall and the lumbar region. There are four paired arteries on each side, positioned below the gonadal arteries and above the inferior mesenteric artery. They course laterally and posteriorly to perfuse the muscles, vertebrae, and surrounding structures, with connections to neighboring intercostal and spinal branches. The other options refer to arteries serving different regions: intercostal arteries chart the thoracic wall, renal arteries go to the kidneys, and hepatic arteries supply the liver, so the correct name for this set in the described location is the lumbar arteries.