Same chapter2 marksDifficulty: Easy
Name the four chambers of the human heart and state which blood vessel enters or leaves each.
Circulatory System
2 marksDifficulty: Easy
State two structural differences between an artery and a vein.
Original Khojo Papers practice question — not from a past board paper.
Answer
An artery has thick, muscular and elastic walls with a narrow lumen, whereas a vein has thin walls with a wide lumen. Veins contain valves that prevent the backflow of blood, while arteries (other than at the base of the great vessels) do not.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The differences reflect the high pressure in arteries and the low pressure in veins.
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