During strenuous exercise, which blood vessel is primarily responsible for supplying oxygenated blood to the skeletal muscles?
Q1. During strenuous exercise, which blood vessel is primarily responsible for supplying oxygenated blood to the skeletal muscles?
Answer: Arterioles
Explanation: Arterioles regulate blood flow to capillaries; they are primary suppliers of oxygenated blood to muscles during exercise. Venules collect deoxygenated blood.