| A | B |
| skeletal system | all the bone in your body |
| muscles are | attached to the bone |
| periosteum helps | in the growth of bones and repairof bones |
| bone is | made up of living tissue |
| your skeletal system has | 206 bones |
| your bones have cartilage | to help make moving easier |
| spongy bone are filled with | fatty tissue called marrow |
| your elbow is a | hinge |
| your skull is | immovable |
| a ligement | holds the bone together at joints |
| your body has | more than 600 muscles |
| voluntary muscles | you can control |
| involuntary muscles | you cant control |
| tendons pull on the bone | as the muscles contract |
| cardiac muscle | is found only in your heart |
| smooth muscles are | involuntary |
| anabiolic steriods | were first made for sick people to build muscle tissue |
| women may grow facial hair | because of the drug |
| mens | testicles may shrink |
| the epidermis | is the surface layer of your skin |
| thousands of cells are | rubbed off when you take a shower, wash your hands ,or shake hands |
| you have | thousands of sweat glands |
| when you get burned severly | your skin can,t produce skin cells |
| when you get cut your blood | will clot forming a scab and begin replacing skin cells |
| the dermis | is the layer under the epirdermis |
| mellanin | gives your skin color |
| also when you are burned | water is rapidly loss |
| your skin | has five major functions |
| blood vessels in the skin | can help hold heat or release it |
| the third function | excrete water |