The extent of contraction of arteriolar smooth muscle depends on the cytosolic concentration of what element?

Question

Quizplus · Accepted Answer

The extent of contraction of arteriolar smooth muscle is primarily regulated by the cytosolic concentration of calcium ions. An increase in calcium ions leads to contractile activity, while the removal of calcium ions leads to relaxation. Calcium ions enter the smooth muscle cells through voltage-gated channels or receptor-operated channels in response to neural or hormonal stimulation.

The Extent of Contraction of Arteriolar Smooth Muscle Depends on the Cytosolic