Choose all of the autoregulation (intrinsic control) that will cause vasodilation of arteriolar smooth muscle. ​[Choose all that apply]Multiple answers:Multiple answers are accepted for this questionSelect one or more answers and submit. For keyboard navigation...SHOW MOREaIncreased oxygen concentrationbIncrease nitric oxidecSympathetic stimulationdHeat

The autoregulation mechanisms that will cause vasodilation of arteriolar smooth muscle are:

b) Increase in nitric oxide: Nitric oxide is a potent vasodilator. It is released from the endothelial cells lining the blood vessels and causes relaxation of the smooth muscle cells in the vessel wall, leading to vasodilation.

d) Heat: Heat causes vasodilation by relaxing the smooth muscle in the walls of the blood vessels. This is why skin often appears redder when it's hot - more blood is being directed to the skin's surface.

Increased oxygen concentration (a) and sympathetic stimulation (c) are not typically associated with vasodilation. Increased oxygen concentration often leads to vasoconstriction, as the body tries to direct blood flow away from areas that are already well-oxygenated. Sympathetic stimulation usually leads to vasoconstriction as well, as part of the body's "fight or flight" response.