Which of the following normally causes vasodilation of skeletal muscle arterioles during exercise?

Question

Quizplus · Accepted Answer

During exercise, muscle cells generate action potentials that cause the release of potassium ions into the interstitial fluid, which then enters the blood plasma. An increase in blood potassium concentration causes the smooth muscle cells in the walls of arterioles to hyperpolarize, leading to vasodilation and increased blood flow to the active skeletal muscle.

Which of the Following Normally Causes Vasodilation of Skeletal Muscle