Topics: The Vascular System and Blood Flow Quiz
What is the function of the one-way valves in veins?
A. Ensuring the flow of blood can only go back to the heart
B. Creating a difference in pressure between the veins in the chest and abdominal cavities
C. Assisting in the distribution of blood to different organs
D. Regulating blood clotting
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What is the role of the thoracic pump in the return of blood to the heart?
A. Creating a difference in pressure between the veins in the chest and abdominal cavities
B. Pushing or massaging blood back to the heart with each muscle contraction
C. Regulating blood clotting
D. Assisting in the distribution of blood to different organs