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chapter 22 sec 2
| Question | Answer |
|---|---|
| skeletal system | the organ system whose primary function is to support and protect the body and allow the body to move. |
| protection | your heart and lungs are protected by ribs, your spinal cord is protected by your vertebrae. Your brain is protcted by the skull. |
| storage | bones store minerals that help your nerves and muscles function properly. Long bones store fat that can be used for energy. |
| movement | skeletal muscles pull on bones to produce movement . Without bones you would not be able to sit, stand, walk or run. |
| Blood cell formation | me of your bones are filled with a special material that makes blood cells. This material is called marrow. |
| cartilage | a flexible tissue. |
| red marrow | a soft tissue in bones. produces both red and white blood cells |
| yellow marrow | found in the central cavity of long bones and stores fat. |
| osteoblasts | minerls that are deposited by living cells. |
| compact bone | bone tissue without any visible open spaces. |
| joint | a place where two or more bones meet. |
| Osteoporosis | a disease that causes bones to become less dense. Bones become week and break more easily. |
| arthritis | a disease that effects the joints. joints swell and stiffen. |
Created by:
harty
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