Which arteries supply the adrenal glands?

• A. The superior suprarenal arteries
• B. The middle suprarenal arteries
• C. The inferior suprarenal arteries
• D. The superior, middle and inferior suprarenal arteries

Answer: (D)

Adrenal glands have multiple arterial inputs to ensure robust blood flow to both the cortex and medulla. The superior suprarenal arteries branch from the inferior phrenic arteries and reach the gland’s superior pole. The middle suprarenal arteries usually come directly from the abdominal aorta and supply the gland’s central region. The inferior suprarenal arteries arise from the renal arteries and perfuse the inferior pole. Together, they form an anastomotic network around the gland, providing a reliable blood supply from all three sources. That’s why the best answer is the combined supply from the superior, middle, and inferior suprarenal arteries.