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SJCC Physio Ch 7
Skeletal System Vocabulary Terms
| Question | Answer |
|---|---|
| Epiphysis | The expanded portion at the end of a long bone |
| Articulates | Forms a joint |
| Articular Cartilage | Hyaline cartilage that covers the ends of bones |
| Diaphysis | The shaft of a long bone |
| Periosteum | Fibrous connective tissue covering the surface of a bone |
| Process | Bony projections where ligaments and tendons attach |
| Compact Bone (Cortical Bone) | Dense tissue in which cells are organized in osteons (Haversion Systems) with no spaces |
| Spongy Bone (Cancellous Bone) | Bone that consists of bars and plates separated by irregular spaces |
| Osteon (Haversion System) | A cylinder-shaped unit including bone cells that surround a central canal |
| Central Canal (Haversion Canal) | Tiny channel in bone tissue that houses a blood vessel |
| Osteocyte | A mature bone cell |
| Osteoblast | A bone forming cell |
| Osteoclast | A cell that erodes bone |
| Ossification | The formation of bone tissue |
| Medullary Cavity | Cavity containing marrow within the diaphysis of a long bone |
| Marrow | Connective tissue in spaces within bones that include blood-forming stem and progenitor cells |
| Intramembranous Bone | Bone that forms from membranelike layers of primitive connective tissue |
| Endochondral Bone | Bone that begins as hyaline cartilage that is subsequently replaced by bone tissue |
| Epiphyseal Plate | Cartilagenous layer within the long bone epiphysis that grows |
| Lacunae | Bony chambers that enclose osteocytes |
| Canaliculi | Microscopic canal that connects the lacunae of bone |
| Perforating Canals (Volkmann's Canals) | Transverse canals connecting the Haversion canals |
| Primary Ossification Center | Original location of bone development in the diaphysis of the forming bone |
| Secondary Ossification Center | Location of bone development in the epiphysis of a growing bone |
| Hematopoisis | Blood cell formation |