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021
Musculoskeletal system - Q – Anatomic Terms Related to bones & A – Meaning
| Question | Answer |
|---|---|
| appendicular skeleton | bones of the shoulder, pelvis, and upper and lower extremities |
| axial skeleton | bones of the skull, vertebral column (Fig. 4-3), chest, and hyoid bone (U-shaped bone at the base of the tongue) |
| bone | specialized connective tissue composed of osteocytes (bone cells); forms the skeleton |
| compact bone | tightly solid bone tissue that forms the exterior of bones |
| spongy bone | mesh-like bone tissue found in the interior of bones, and surrounding the medullary cavity |
| long bones | bones of the arms and legs |
| short bones | bones of the wrist and ankles |
| flat bones | bones of the ribs, shoulder blades, pelvis, and skull |
| irregular bones | bones of the vertebrae and face |
| sesamoid bones | round bones found near joints (e.g., the patella) |
| Parts of a Long Bone (Fig. 4-4) | 0 |
| epiphysis | wide ends of a long bone (physis = growth) |
| diaphysis | shaft of a long bone |
| metaphysis | growth zone between the epiphysis and the diaphysis during development of a long bone |
| endosteum | membrane lining the medullary cavity of a bone |
| medullary cavity | cavity within the shaft of the long bones; filled with bone marrow |
| bone marrow | soft connective tissue within the medullary cavity of bones |
| red bone marrow | functions to form red blood cells, some white blood cells, and platelets; found in the cavities of most bones in infantsand in the flat bones in adults |
| yellow bone marrow | gradually replaces red bone marrow in adult bones; functions as storage for fat tissue and is inactive in the formation of blood cells |
| periosteum | a fibrous, vascular membrane that covers the bone |
| articular cartilage | a gristle-like substance on bones where they articulate |
Created by:
shachi.pandit
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