Middle suprarenal arteries

The middle suprarenal arteries are shown in this diagram of the abdominal aorta and its branches.

The Middle Suprarenal Arteries (MSA) are small, paired arteries in the human body that supply blood to the adrenal glands. They are also known as the Middle Adrenal Arteries or Middle Capsular Arteries.

Anatomy

The middle suprarenal arteries originate directly from the abdominal aorta, typically at the level of the first lumbar vertebra. They course laterally towards the adrenal glands, where they branch into numerous smaller vessels to provide blood supply.

Function

The primary function of the middle suprarenal arteries is to supply oxygenated blood to the adrenal glands. These glands are responsible for the production of several vital hormones, including cortisol, aldosterone, and adrenaline.

Clinical Significance

Abnormalities or damage to the middle suprarenal arteries can lead to various medical conditions. For instance, an aneurysm in these arteries can cause adrenal insufficiency or Addison's disease.

See Also

• Inferior suprarenal artery
• Superior suprarenal artery