How many types of muscles are there?
3 types: cardiac muscle,skeletal muscle and smooth muscles.
Is the heart a cardiac muscle?
Yes! and it is an involuntary muscle.
What are muscles made of?
They are made of fibres that stretch and pull .
What are voluntary muscles?
Muscles that you can control.
What parts of the body is strenghtened when we do physical activity?
Muscles ;)
What is the muscular system?
It's a set of organs that allow us to move.
