Q. 49 A

What is meant by 'heart beat' ? What is the usual heart beat rate at rest?

Answer :

One heart beat includes one complete contraction (systole) and relaxation (diastole) of heart. The normal heart beat rate at rest is 72 times /minute.

(b) When a person runs for a while, his heart beat becomes faster because he needs more energy to run.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Get to Know How Do We Respire?42 mins
Genius Quiz | The Vital Processes38 mins
Quiz | Let's Recall - Life Process50 mins
Get to Know About Waste EliminationFREE Class
Know More About Transport in animals47 mins
Defining Life and Life Processes57 mins
Doubt Session - Life Processes46 mins
Origin of LIFE40 mins
Artificial kidney35 mins
Looking through a Microscope36 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses