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Bone histology

Chpt 5

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