Functions

Your heart pumps blood with the help of the myocardium or the cardiac muscle that contracts and relaxes.

Your muscles contract and relax to move your bones. They help you do things like running, turning tour head, and swinging a softball bat.

As you chew, your tongue pushes back the food towards your esophagus so it can be broken down.

Fun Fact!

It takes 17 muscles to smile and

43 muscles to frown. So try smiling a

little more! Your face will thank you.