click below
click below
Normal Size Small Size show me how
Microscopic structur
Stack #68216
| Question | Answer |
|---|---|
| extracellular matrix | surrounds widely separated bone cells(osteocytes) |
| calcification | also known as mineralization. Process 1st. mineral salts deposited in bone framework - collogen fibers. 2nd. salts are crystalized and tissue hardens, brought about by osteoblasts-bone building cells. |
| hardness to bone | given by crystallized mineral salts |
| collagen fibers in bone | gives flexibility, tensile strength or resistence to being stretched. |
| 4 types of bone cells | osteogenic cells, osteoblasts, osteocytes, and osteoclasts |
| osteogenic cells | unspecialized bone (stem cells), only bone cell that undergo cell division, develop daughter cells that develope into osteoblasts, located in inner portion of periosteum, endosteum, and canals that contain blood vessels. |
| osteoblasts | bone building cells, forms bone matrix - synthesizing and secreting collagen fibers and other components of bone matrix, as new matrix froms they turn into mature bone cells. |
| osteocytes | mature bone cells, maintain bone tissue by maintaining its metabolism. EX exchange oxygen, nutrients and waste with the blood. |
| osteoclasts | huge cells that break down (resorb) bone fusion, releases pwerful enzyems that digest the components of the bone matrix. |