Chpt 5
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| acounts for 2/3 of bone wieght | Calcium phosphate
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| • Ca(PO4)2 crystals are | v. strong,v. strong inflexiblewithstand compressionbut will shatter
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| Collegen fibers | o Tougho Flexible o Tolerate stretchingo Will bend when compressedo Provides framework form mineral crystal formation
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| another name for mature bone cells | osteocytes
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| osteocytes come from | osteoblasts
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| function of osteocytes | directs the release of Ca from bone to bone And deposition of CaNa’s in bone matrix
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| Location of osteocytes | lacunae (small chamebers) btwn the calcified matrixLacunae are connected by canaliculi (sm canals) through outhe bone matrix
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| another word for lacunea | small chambers, houses the osteocytes
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| another word for canaliuli | canals or vessels connecting the lacunea
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| four types of cells found in bone | osteocytes, osteoblasts, osteoprogenitor, osteoclasts
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| cubidal in shape secretes osteoid- stuff that is mineralized and becomes the bone matrix | Osteoblasts
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| Cell that is responsible for new bone production | osteoblasts
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| another word for new bone production | osteogenesis
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| another word for mesenchyme cells found in the innermost layer of the periosteum and in the endosteum lining of the marrow cavities | osteoprgenitor cells
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| cells that can differenciate into osteoblasts | osteoprogenitor cells
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| osteoclasts | large/ giant cells w/ 50 nuclei or more.
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| the bone cell responsible for dissolving the bone matrix and releasing anino acids, calcim and phosphates | osteoclasts
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| another word for "the erosion of bone matrix" | osteolysis
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| Compact bone | dense bone, forms the walls of bone
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| spongy bone | internal layer of bone, surrounds bone marrow
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| osteon or Haversian system is found in | the compact bone
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| Funtion of compact bone | houses the haversain system which carries the blood ( blood vessels) exhchange sight for blood
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| central canals vs. perforating canals (aka volkman) | central=paralell, perforating=perpendicular
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| function of perforating canals/ volkman canals | delivers blood to the osteons
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| another word for new bone production | osteogenesis
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| another word for mesenchyme cells found in the innermost layer of the periosteum and in the endosteum lining of the marrow cavities | osteoprgenitor cells
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| cells that can differenciate into osteoblasts | osteoprogenitor cells
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| osteoclasts | large/ giant cells w/ 50 nuclei or more.
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| the bone cell responsible for dissolving the bone matrix and releasing anino acids, calcim and phosphates | osteoclasts
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| another word for "the erosion of bone matrix" | osteolysis
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| Compact bone | dense bone, forms the walls of bone
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| spongy bone | internal layer of bone, surrounds bone marrow
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| osteon or Haversian system is found in | the compact bone
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| Funtion of compact bone | houses the haversain system which carries the blood ( blood vessels) exhchange sight for blood
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| central canals vs. perforating canals (aka volkman) | central=paralell, perforating=perpendicular
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| function of perforating canals/ volkman canals | delivers blood to the osteons
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| The structure of spongy bone consists of | trabuculae.
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| another word for parellel lamelle that forms "thin branching plates" found in spongy bone | trabuculae
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| How are nutrients exhchanged in the the spongy bone | through diffusion
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