Question

a) What is meant by ‘heart beat’? What is the usual heart beat rate at rest?​ ​ ​ ​

Answer 1

Answer:
​Heartbeat is the sound produced when there is contraction and relaxation of the heart. The pulse which is caused by heartbeat executes the heart to contract and pump blood.​

At rest, the human heart normally beats 70 to 72 times per minute.​ ​ ​ ​ ​