| A | B |
|---|
| what is the skeletal system | all the bones together |
| name one reason what the skeletal system does | it gives shape and support to your body |
| name one more reason wyh your skeletal system is imporant | the bones protect your internal organs |
| how are bones classified | by their shape |
| what is the humerus | is a long bone in your upper arm |
| what is periosteum | the surface of the bone id covered with a tough tissue called periosteum |
| what does compact bones contain | bone cells, blood vessels, the minerals calicum and phosphorus |
| where is the spongy bone found | toward the ends of the bone |
| what is marrow | a fatty tissue |
| what is cartilage | a thick smooth layer of tissue |
| does cartilage contain blood vessels | no |
| what are bone forming cells called | osteoblasts |
| what is a break in the bone called | a fracture |
| how can you heal a broken bone | th e bone has to be brought together |
| what is a ligament | a tough band of tissue that holds bones together |
| what is a immovable joint | it allows little or no movement |
| what is a movable joint | allows the body to maka a wide range of movement |
| name one type of a movable joint | ball and socket |
| what is a muscle | an organ that contracts and gets shorter |
| what is a volantary muscle | muscles that you control |
