| A | B |
|---|
| Joint | a place where two bones come together |
| Ligament | tissues which connect a bone to a bone |
| Tendon | tissues which connect the end of a muscle onto a bone |
| Contract | to shorten or get smaller |
| Voluntary muscle | a muscle which can be controlled |
| Involuntary muscle | a muscle which can not be controlled |
| Organ | a group of cells that work together |
| System | organs that work together together to do the same job |
