Multiple Choice
What determines the movement of blood in systemic veins?
A) The blood pressure difference between systemic capillaries and the right atrium
B) The contraction and relaxation of skeletal muscles
C) The decrease of thoracic pressure and increase of abdominal pressure due to diaphragm movement
D) Valves in the veins
E) All of the these
Correct Answer:
Verified
Correct Answer:
Verified
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