Same chapter3 marksDifficulty: Medium
Explain why a person of blood group O is called a universal donor.
Circulatory System
3 marksDifficulty: Medium
Why is the wall of the left ventricle thicker than that of the right ventricle?
Original Khojo Papers practice question — not from a past board paper.
Answer
The left ventricle pumps blood through the whole body, against a much greater resistance and over a much greater distance, so it must generate a far higher pressure. The right ventricle pumps only to the lungs, which are close by and offer little resistance.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The two ventricles nevertheless pump equal volumes of blood with each beat.
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Trace the path of a drop of blood from the right atrium back to the right atrium.
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