Which of the following does not contribute to venous return?

A. Contraction of skeletal muscles of the limbs
B. The expansion and contraction of the thoracic cavity during ventilation
C. The suction created by the atria slightly expanding during ventricular systole
D. The difference of pressure between venules and the venae cavae
E. Widespread vasodilation


Answer: E

Anatomy & Physiology

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