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Sasser Skeletal
Life Science
| Term | Definition |
|---|---|
| Skeletal System | the organ system whose primary function is to support and protect the body and allow the body to move |
| osteoblasts | minerals that are deposited by living cells |
| compact bone | no visible open space; rigid and dense; tiny canals that contain blood vessels |
| spongy bone | many open space; provides most of the strength and support for a bone |
| marrow | soft tissue |
| red marrow | produces both red and white blood cells |
| yellow marrow | found in the central cavity of long bones, stores fat |
| cartilage | soft tissue; helps cushion the area in a joint where bones meet; covers the end of many bones Example: enf of nose and top of ear |
| joints | where two bones meet |
| hinge joints | allow you to flex and extend; Example: lower leg |
| gliding joints | allows bones to glide over one another and allows some flexibility to the area Example: wrist and hand |
| ball and socket joint | lets you move freely in all directions Example: shoulder lets arm move all around |
| ligaments | strong elastic bands of connective tissue; connect the bones in a joint |
| osteoporosis | disease that causes bones to becom less dense |
| arthritis | effects the joints; joints may swell or stiffen |
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bsasser
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