Single Answer MCQ
Q-00045853
How does regular physical activity affect the heart's size?
1
It decreases heart size
2
It has no effect on heart size
3
It increases heart size due to muscle growth
4
It reduces heart efficiency
Answer and Solution
Answer
C. It increases heart size due to muscle growth
Solution:
Regular physical activity leads to the hypertrophy of cardiac muscle, which increases heart size and improves its pumping efficiency.
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