Arterioles can change their diameter by constricting or dilating, which alters blood flow to the tissues.

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Arterioles are small blood vessels that play a crucial role in regulating blood flow to the tissues. By constricting or dilating, they can increase or decrease the amount of blood flowing to different parts of the body, depending on the body's needs. This is an important mechanism of regulating blood pressure and maintaining homeostasis.

Arterioles Can Change Their Diameter by Constricting or Dilating, Which