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Questions and Answers
What is the main function of veins in the circulatory system?
What is the main function of veins in the circulatory system?
- To transport deoxygenated blood from the heart to the tissues (correct)
- To regulate blood pressure
- To contract and push blood to the tissues
- To transport oxygenated blood from the heart to the tissues
What is the purpose of valves in some veins?
What is the purpose of valves in some veins?
- To facilitate the exchange of gases in the blood
- To control the flow of oxygenated blood to the heart
- To prevent backflow of blood and regulate one-way flow to the heart (correct)
- To increase blood pressure in the veins
How does the skeletal muscle pump influence venous return?
How does the skeletal muscle pump influence venous return?
- By compressing the veins and propelling blood towards the heart (correct)
- By contracting and pushing blood towards the tissues
- By decreasing the diameter of the veins
- By increasing blood pressure in the veins
