| A | B |
|---|
| Involuntary Muscle | Muscles that are not under your conscious control. |
| Voluntary Muscle | Muscles that are under your conscious control. |
| Skeletal Muscle | Muscles that are attached to the bones of your skeleton. |
| Tendon | A strong connective tissue that attaches muscle to bone. |
| Smooth Muscle | Involuntary muscles found in many internal organs. |
| Cardiac Muscle | Involuntary muscles found only in the heart. |
| Contract | To squeeze or tighten. |
| Relax | To release tension. |
| Pairs | Muscles work in these to move body parts. |
