Single Answer MCQ
Q-00020094
Why is an increase in the thickness of the heart walls beneficial?
1
It allows for a higher resting heart rate
2
It enables the heart to pump more forcefully
3
It decreases the heart’s efficiency
4
It reduces blood flow to muscles
Answer and Solution
Answer
B. It enables the heart to pump more forcefully
Solution:
An increase in the thickness of heart walls enables the heart to pump blood more forcefully, thus improving overall circulatory efficiency. The other options do not accurately describe the effect of thicker heart walls.
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