How many times does the heart of an adult man beats? (a) 50 times (b) 72 times (c) 110 times (d) 120
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Answer:
72 times beating occur
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Answer:
72 times in one minute
Explanation:
Our heart is made of cardiac muscles. it is derived as a mesodermal organ. It has four-chambered, upper two chambers are called atria and lower two are called the ventricles. The Heart is covered by the double-walled membranous bag called pericardium. Walls of ventricles are thicker than atria. Our heart normally beats 70 - 75 times in a minute. An average we consider 72 beats per minute.
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