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A&P 1 CH 6 Part 3
Anatomy of Bone
| Question | Answer |
|---|---|
| made of of collagen fibers embedded in a protein and polysaccharides | matrix |
| functions of bone | support, protection, leverage, storage, blood cell formation |
| light and spongy bone | cancellous bone |
| dense and heavy bone | compact bone |
| compact bone is composed of these that run lengthwise with the bone | haversian systems |
| concentric layers of ossified bone matrix arrange around this | central canal |
| Each ____ is occupied during life by a branched cell, termed an _____, bone-cell or bone-corpuscle | lacuna; osteocyte |
| most abundant cell found in compact bone | osteocyte |
| lacunae are connected to one another by small canals called | canaliculi |
| A lacuna never contains more than one ____ | osteocyte |
| membrane that covers outer surfaces of bones | periosteum |
| outer layer of periosteum is composed of | fibrous tissue |
| inner layer of periosteum contains these immature bone cells | osteoblasts |
| membrane that lines the hollow interior surfaces of bones; also contains osteoblasts | endosteum |
| ____ that become trapped in the bone matrix and remain isolated in _____ become ______ | osteoblasts; lacunae; osteocytes |
| cells that produce bone, harden matrix through ossification | osteoBLASTS |
| remodel/remove bone; allow the body to withdraw calcium from the bone with the blood level is low | osteoCLASTS |
| channels through bone matrix that contain blood vessels and enter at right angles into the periosteum | Volkmann canals |
| channels in many large bones that contain large blood vessels, lymph vessels, and nerves | nurtient foramina |
| grows into and replaces cartilage; primary growth center where bones develop in the diaphysis ( shaft of the cartilage rod); secondary growth centers develop in epiphysis (end of cartilage rods) | endochondral bone formation |
| develops from fibrous tissue membranes; occurs in certain skull bones; creates flat bones of the cranium | intramembranous bone formation |
| bones that are longer than they are wide; make up majority of our bones | long bones |
| shaped like small cubes; spongy bone covered by compact | short bones |
| thin and flat; cancellous bone sandwich between two compact bone | flat |
| miscellaneous bones | irregular |
| forms blood cells, majority in young animals | red bone marrow |
| consists primarily of adipose connective tissue; most common type in adult animals, can convert to red bone marrow if needed | yellow bone marrow |
Created by:
maiken
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