| A | B |
|---|
| Locomotion | when an organism moves itself |
| Bone | tissue made of cells and minerals (that protects and supports us) |
| Cartilage | flexible tissue of the skeletal system |
| Joints | a place in the body where two or more bones meet |
| Involuntary muscles | a muscle the moves without your control |
| Voluntary muscles | a muscle that moves because you control it |
| Muscle fatigue | the build up of lactic acid that happens when muscle cells don't get enough oxygen |
| Arthritis | inflammation of the joints |
| Tendon | tissue that connects muscle to bones or other muscles |
| Ligament | tissue that holds bones together at a joint |
