The abbreviation SMA refers to which artery?

The abbreviation SMA stands for the Superior Mesenteric Artery. This artery is vital as it supplies blood to the majority of the small intestine, the cecum, the ascending colon, and a part of the transverse colon. It arises from the abdominal aorta just below the renal arteries and branches off into several arteries that feed these intestinal areas. Understanding the role of the SMA is essential for recognizing conditions such as mesenteric ischemia, which occurs when blood flow to the intestines is reduced, often due to blockages or narrowing of this artery.

The other options do not refer to an artery recognized in vascular anatomy or their anatomical references are not accurate for the SMA abbreviation. Therefore, identifying SMA as the Superior Mesenteric Artery underscores its importance in vascular assessments and interventions in the context of abdominal organ perfusion.