Skeletal System Definitions
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Created by:
econly on November 1, 2010
Classes:
Conly Nurse Tech Tenth Grade Stuff
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18 terms
Terms | Definitions |
|---|---|
 Diaphysis | The shaft of a long bone |
| Epiphysis | end of a long bone |
| Medullary canal | cavity in diaphysis filled with yellow marrow |
| endosteum | membrane lining the medullary cavity of a bone |
| yellow marrow | bone marrow that is yellow with fat; found at the ends of long bones in adults |
| red marrow | found in flat bones and the ends of long bones; location of blood cell formation |
| periosteum | Outer most fibrous layer that supplies blood and nerves to the bone |
| axial skeleton | the part of the skeleton that includes the skull and spinal column and sternum and ribs |
| appendicular skeleton | forms the extremities and is composed of the shoulder girdle, arm bones, pelvic girdle, and leg bones |
| fontanels | "soft spots," allow for the enlargement of the skull as brain growth occurs |
| sutures | areas where cranial bones have joined together |
| sinuses | air spaces in the bones of the skull that act as resonating chambers for the voice |
| foramina | openings in bones that allow nerves and blood vessels to enter or leave the bone. |
| ligaments | connect bone to bone at joints |
| diarthrosis | freely moveable joint like shoulder, hip, elbow or knee |
| amphiarthrosis | slightly moveable joint like the ribs to the thoracic vertebrae |
| synarthrosis | immoveable joint like the cranium |
| joints | areas where two or more bones join together |
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