Term
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Definition
1. mesenchymal cells differeniate to osteoblasts
2. osteoblasts secret osteoid
3. osteoid mieralizes, trapping osteoblasts
4. osteoblasts become osteocytes
5. small fragments fuse to for large pieces |
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Term
| Intramembranous ossification |
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Definition
occurs in fields of mesenchyme without precursos cartilage model
-skull and facial bones |
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Term
| Endochondral ossification |
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Definition
| mesenchym-->cartilage model-->bone |
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Term
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Definition
flat bones of skull that form by intramembranous ossification
sandwich spongy bone |
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Term
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Definition
| hyaline cartilagenous plate where growth of long bones in children occurs |
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Term
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Definition
1. fibrous joints--fixed
2. cartilaginous joint--limited mobility
3. synovial joint--full mobility |
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Term
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Definition
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Term
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Definition
intervertebral discs, symphsis pubis
joined by fibrocartilage |
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Term
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Definition
shoulder, elbow, wrist, knee
encapsulated by ligamentous structures |
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Term
| Characteristics of synovial joint |
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Definition
1. hyaline cartilage
2. synovial membrane in capsule
3. synovial fluid lubricant
4. very slippery
5. wearing down causes osteoarthritis |
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Term
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Definition
-cresent shaped pads in synovial joints
-restrict mobility to prevent tears
-consist of fibrocartilage pads |
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