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2.3 Bone Comp&Shape
Composition and shape of bones
| Question | Answer |
|---|---|
| Flat bones | bones with flat surfaces |
| Irregular bones | bones with irregular shapes (verebrae) |
| Long bones | bones with long shafts (femur) |
| Sesamoid bones | bones that resemble a sesame seed (patella) |
| Short bones | bones that are relatively short (carpals or tarsals) |
| neck (of a bone) | the part near the head. epiphysis |
| plate (of a bone) | growth plate where bone growth occurs. metaphysis |
| shaft (of a bone) | long, slender part of the bone. diaphysis |
| articulation | connection between bones, joint |
| joint | place where bones join |
| insertion | point of attachment of a muscle to the bone it moves |
| origin | a point of attachment of a muscle to a bone that acts as the lever for a specific muscle |
| compact bone (location) | hard external bone |
| cancellous or spongy bone (location) | internal ring |
| medullary canal (location/what it does) | center of bone that contains the bone marrow (which produces blood cells) |
| osteoblasts | cells that form bone |
| osteroclasts | cells that break down bone |
| osteocytes | bone cells |
| hyaline cartilage | elastic cushiony and slippery. makes the articular surfaces at the joints |
| white fibro cartilage | elastic, flexible, and tough. found in joints such as the knee |
| ligaments | located at moveable joints. bones are held together by ligaments |
Created by:
FMHSAHS102
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