Smooth Muscle in the Arteriole Walls Can Vasoconstrict or Vasodilate

question 105

Multiple Choice

Smooth muscle in the arteriole walls can vasoconstrict or vasodilate, which:

• A) helps to regulate blood pressure.
• B) helps to accelerate the flow of blood through the vessels.
• C) prevents the back flow of blood into the tissues.
• D) squeezes oxygen out of the blood.
• E) adds strength to the blood vessels.

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