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21 Cards in this Set
- Front
- Back
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Diaphysis |
Long Bone shaft |
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Periosteum |
Outer sleeve; covers everything but the articular surface, vascular, bends with tendon |
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Endosteum |
Lines the marrow/medulla cavity |
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Osteogenic cells |
Embryonic/stem cells |
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Osteoblast |
1.Build organic matrix, become osteocyte 2. Attracts calcium 3. Heavy amounts of mitochondria and rough er |
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Osteocyte |
Trapped in lacunae |
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Ostelclast |
1.Breaks down matrix and recycles it 2.multinucleate 3. Can free calcium for other purposes |
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Central canal |
For vesicles and nerves meet volkmans canals, can be seen okay cross section of compact bone |
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Trabeculae |
Thin strips of matrix in spongy bone |
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Compact Bone |
Dense bone |
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Spongy Bone |
Cancellous bone |
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Sacrolemma |
Cell membrane in muscle |
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Endomysium |
One fiber (muscle cell) covering |
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Myofibrils |
Bundles of microfilaments; Has a high number of mitochondria and multiple nuclei |
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Sacroplasmic reticulum |
A specialized organelle that stores calcium; the smooth er in a muscle cell |
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Tropomyosin |
Cover or expose binding sites |
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Troponin |
Receives calcium from sacrolemic reticulum |
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Dendrites |
Receives stimulus from multiple contacts (branching) |
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Axon |
Transmits signal to synapse; terminal ends in knob; begins at hillock (trigger zone) where the action potential starts |
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Neurofilaments |
Intermediate filaments |
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Action potential |
When large depolarization wave is at +30mv |
