CVS Practice Test

The artery of Adamkiewicz, also known as the great anterior segmental medullary artery, plays a critical role in the blood supply to the lower two-thirds of the spinal cord. Its significance lies in its potential as a primary source of blood flow, especially when it is located infrarenally—the area below the renal arteries.

When the artery of Adamkiewicz is located infrarenally, it may supply the spinal cord without redundancy from other arterial sources. If this artery is compromised, there could be severe consequences, potentially leading to spinal cord ischemia or infarction due to the lack of alternative pathways that can effectively compensate for the reduced or absent blood flow.

In summary, the artery of Adamkiewicz being the only significant blood supply emphasizes its crucial role, especially in certain anatomical locations. Understanding its vascular importance can aid medical professionals in anticipating and managing conditions that may affect spinal cord perfusion, such as during surgical procedures involving the aorta or in certain cardiovascular pathologies.