BONE - tissue BONE: * Bone is one of the hardest tissues in...

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tissue BONE : * Bone is one of the hardest tissues in the body. * The hardness of the bone, its ability to resist compression, is due to the inorganic calcium phosphate (calcium hydroxyapatite) deposited within the matrix. * Numerous collagen fibers embedded within the matrix give the bone its ability to resist twisting and stretching. * The mature bone cells are called osteocytes . They are connected together by very fine tentacle-like cytoplasmic processes. * Osteocytes lie within chambers in the matrix called l acunae . * Radiating in all direction from the lacunae are minute canals called canaliculi . They connect the lacunae with each other. * Canaliculi are filled with extracellular fluid and contain the slender cytoplasmic processes of the osteocytes. * There are two types of bone tissue: * compact bone * spongy bone COMPACT BONE * Compact (dense) bone tissue consists of precise arrangements of microscopic cylindrical structures called osteons. The matrix and osteocytes of osteon are laid down in concentric
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This note was uploaded on 01/30/2012 for the course BSC BSC1085 taught by Professor Sharonsimpson during the Fall '10 term at Broward College.

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BONE - tissue BONE: * Bone is one of the hardest tissues in...

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