Question

multiple choice question on this diagram of a small capillary bed, what is the arrow pointing to? precapillary sphincter venule arteriovenous shunt need help? review these concept resources.

Explanation:

Pre - capillary sphincters are rings of smooth muscle that regulate blood flow into capillaries. Venules are small blood vessels that collect blood from capillaries and drain into larger veins. An arteriovenous shunt is a connection between an artery and a vein that allows blood to bypass the capillaries. Based on the typical structure and location in the capillary bed diagram, the arrow is likely pointing to a pre - capillary sphincter.

Answer:

Precapillary sphincter