Multiple Choice
During long flights, it is recommended that you move your foot up and down periodically, forcing contractions of the muscles in the calf. How would this help with circulation?
A) Contraction of the muscles increases heart rate and burns calories, keeping the heart strong and assisting in maintaining healthy weight.
B) Contraction of muscles stimulates the arteries to vasodilate, reducing blood pressure.
C) Contraction of the leg muscles stimulates baroreceptors to signal the autonomic nervous system to decrease blood pressure and heart rate from
D) Contraction of the leg muscles squeezes leg veins, which function as a pumping mechanism to return deoxygenated blood to the heart.
Correct Answer:

Verified
Correct Answer:
Verified
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