Multiple choice

Exercise causes

  1. increased blood flow to the muscles after half a minute

  2. increase in cerebral blood flow due to increase in systolic blood pressure

  3. body temperature to rise

  4. decreased muscle lymph flow

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Exercise increases metabolic heat production, which causes body temperature to rise. Increased muscle blood flow develops over seconds to minutes, not "after half a minute" as a discrete event. Cerebral blood flow is tightly autoregulated and does not significantly increase with systolic blood pressure during exercise. Muscle lymph flow actually increases with increased muscle activity and blood flow.

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