Which one of the following statements is FALSE about mechanisms that help prevent venous blood from staying in the feet?

Question

Which one of the following statements is  FALSE  about mechanisms that help prevent venous blood from staying in the feet?

Accepted Answer

Activation of the SNS causes dilation of veins to help push blood towards the heart.

Answer

Pressure changes during breathing/respiration help push blood towards the heart.

Answer

Contraction of skeletal muscle helps propel blood towards the heart.

Answer

Venous valves prevent backflow of blood into the lower extremities, which makes it easier to push blood back to the heart.

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