Question

What is the approximate duration of a cardiac cycle?

• A. 0.1 seconds
• B. 72 seconds
• C. 1 minute
• D. 0.8 seconds

Answer 1

Answer:

D. 0.8 seconds

• We know that the heart beats 70-75 times per minute. It beats approximately 72 times per minute.

• Hence, 72 cardiac cycles take place in one minute.

• Therefore, the duration of one cardiac cycle is 0.8 seconds.