Biology · Human Circulatory System
Which of the following statements are correct about the human circulatory system? (A) Arteries carry oxygen-rich blood from the heart to all parts of the body. (B) Veins carry carbon dioxide-rich blood from all parts of the body back to the heart. (C) Blood flow is rapid and at high pressure, thus veins have thick elastic walls. (D) The valves present in arteries allow blood to flow in one direction only.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1(B), (C) and (D)
- 2(C) and (D) only
- 3(A), (B) and (C)
- 4(A) and (B) only✓
Correct answer
(A) and (B) only
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