| A | B |
|---|
| Involuntary | A muscle not under your control |
| Voluntary | A muscle you can control |
| Skeletal | Muscles that are attached to bones for movement |
| Smooth | Type of muscle found in your organs |
| Cardiac | Type of muscle found in the heart |
| Muscle | Helps the body move and warms you up |
| Biceps | A skeletal muscle in the front of the arm that can contract or relax |
| Triceps | When the biceps contracts, this arm muscle must relax |
| More than 600 | The average number of muscles in a human |
| Tendon | This attaches a bone to a muscle so you can move |
| Diaphragm | A skeletal muscle that moves the lungs up and down |
