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5 Cards in this Set
- Front
- Back
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Osteoclasts are? |
•Secrete acids and protein-digestingenzymes•Giant, multinucleate cells •Dissolve bone matrix and releasestored minerals (osteolysis) •Derived from stem cells thatproduce macrophages |
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•Fractures are repaired in how many steps and what are they? |
1.Bleeding 2.Cells of the endosteum and periosteum 3.Osteoblasts 4.Osteoblasts and osteocytes remodelthe fracture for up to a year |
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•Osteoblasts function in a fracture? |
•Replace central cartilage ofexternal callus•With spongy bone |
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•Articulations |
•Bodymovement occurs at joints (articulations) where two bones connect |
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•Joint Structure |
•Determinesdirection and distance of movement (range of motion or ROM)•Jointstrength decreases as mobility increases |
