Muscular System

This book takes students right inside the body to find out how the muscular system works, why things can go wrong and what you can do to stay healthy.
It answers questions students have about their body such as:

How many muscles do you have?
What does each muscle do in your body?
How do your muscles change as you grow?
What happens if you tear a muscle?

The Our Body series examines six of the human body systems. Special features include:
– Health Tips
– Fascinating Facts
– Under the Microscope
– Try This