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Questions and Answers
What is the function of the thin walls of capillaries?
What is the function of the thin walls of capillaries?
Allowing oxygen and nutrients to diffuse from blood into tissues and allowing carbon dioxide and other waste products to move from tissues into blood.
How do skeletal muscles contribute to the movement of blood in veins?
How do skeletal muscles contribute to the movement of blood in veins?
When you move, the contracting skeletal muscles squeeze the veins.
What is the role of valves in the veins?
What is the role of valves in the veins?
Valves ensure blood flows in one direction through these vessels toward the heart.
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