| A | B |
|---|
| Provide structure to the body | bones |
| largest bone | femur (in the thigh) |
| large bone in the top arm | humorous |
| bones that protect your brain | skull |
| bones that protect your lungs | ribbs |
| thick bone in center of your chest that protects the heart | sternum |
| Bones connect to ______ so you can move | muscles |
| Bones also create blood cells in a spongy layer called | bone marrow |
| If you think you broke a bone you should get an | x-ray |
| your body creates a new set of bones about every ____ years | 10 |
