| A | B |
| living cells | Bones are made of |
| joint | the place where bones move |
| fluids | what bones are surrounded by |
| contract | means "to shorten" |
| tendons | connect muscles to bones |
| fracture | a break in a bone |
| arthritis | swelling of the joints is called |
| disc | what each backbone in your spine is separated by |
| long bones | bone marrow is found in the center of these |
| skeleton | the bony frame in the body |
| neurons | you feel pain in bone because they contain |
| 26 | the number of bones in the middle of your back |
| sprain | results when a joint is stretched too far |
| not known | the cause of arthritis is |
| strains | cause muscle soreness |
| muscle bruise | is caused by a blow |
| sprains & arthritis | 2 types of joint damage |
| strains & bruises | 2 types of muscle injuries |
| support the body & protect the body organs | 2 jobs of the bones in the body |