Welcome
to the muscles. Muscles are responsible for your body's every move. Muscles
keep your gut from sagging and your lungs pounding. Muscles are more than
movers.
Muscles make the heat that keep you warm. If you leap, bend, or reach,
this is a result of a muscle action.
A muscle makes itself smaller when it contracts and larger when it relaxes.
Follow the lizards to find out about the three types of muscles and what
they do in the body.
- Types of Muscles:
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