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BoneTissueAxial
| Question | Answer |
|---|---|
| What are the types of tissue that compose bone? Which tissue remains after death? Which tissue plays role specifically in articulation and growth? | osseous, cartilage, dense connective, epithelium, adipose, nervous; osseous; cartilage |
| Function of bone and skeletal system | support, protection, assistance in movement, mineral storage and release (calcium and phosphorus), bone cell production, triglyceride storage |
| What are the contents of the ECM | water, collagen fibers (prevents bone from being brittle), crystallized mineral salts |
| What are osteogenic cells | unspecialized stem cells that undergo cell division into bone cells |
| What are osteoblasts | bone building cells, secrete collagen fibers and organic components needed to build ECM, initiate calcification, turn into osteocytes |
| What are osteocytes | Mature bone cells, maintain bone's daily metabolism, stops putting down ECM |
| What are osteoclasts | break down ECM (resorption), part of normal development, growth, maintenance and repair |
| What is the ruffled border of the osteoclast | deeply folded plasma membrane, releases powerful lysosomal enzymes and acids |
| True/False: Compact bone forms the external layer of all bones but is not the bulk of the diaphyses of long bones | False: it is both |
| Neighboring osteons are aligned in the same direction along what? | Lines of stress |
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