Final answer:
Myogenic autoregulation acts as a local control mechanism that involves the constriction or dilation of smooth muscles in the walls of arterioles to regulate blood flow in response to changes in blood pressure.
Step-by-step explanation:
Myogenic autoregulation acts as a local control mechanism in response to changes in blood pressure. It involves the constriction or dilation of smooth muscles in the walls of arterioles to regulate blood flow and maintain consistent flow to the capillary network. For example, if blood pressure increases, the arterioles constrict to reduce the flow, while if blood pressure decreases, the arterioles dilate to increase the flow.