Approximately, how many times each day do our heart valves open and close normally?
Correct answer: B. 1,00,000
- A. 10,000
- B. 1,00,000
- C. 1,50,000
- D. 2,00,000
Explanation
At an average rate of about 70 heartbeats per minute, the valves open and close roughly 100,000 times in 24 hours. The larger figures would require an abnormally high heart rate or count.
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