How Many Muscles are There in the Human Body?

It varies from 656 to 850 muscles. The exact number may never be known but we do know that there are 3 different kinds: striated, smooth and cardiac muscles. Muscles come in all different sizes and do different types of functions. The busiest or hardest working muscle is found in the eye which is responsible for blinking and can be up to 100,000 times per day!