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31 Cards in this Set
- Front
- Back
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Osteoblasts |
Builds bone |
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Osteocytes |
Cells of bone. Can convert back to osteoblasts to form new bone |
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Osteoclasts |
Break down bone (ex- when you need more calcium elsewhere) |
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Functions of bone |
Support Protect Leverage Storage Form blood cells |
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Periosteum |
Membrane, outer surface of bone Has inner and outer layer Supports bone through nervous tissue and blood vessels |
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Compact bone |
Heavier, protective. On outside of bones. Takes out waste |
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Cancellous (spongy) bone |
Very light, holes, filled with marrow. |
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Endosteum |
Membrane that lines hollow interior surfaces |
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Nutrient foramina |
Channels in large bones for blood supply |
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Nutrient foramen |
Hole in bone, where vessels/blood gets to bone |
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Volkman canals |
Channels in bone matrix that contain blood vessels, foraman channels into |
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Endochondral bone formation |
Within cartilage. Mostly in fetus. Growth center. Becomes bone over time |
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Epiphyses |
Secondary growth in ends of long bones |
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Epiphyseal plate |
Growth plate. Cartilage in epiphyses, contains osteoblasts |
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Intramembranous bone formation |
Skull bones. Membrane is over skull as fetus, then calcifies |
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Sutures |
Lines on skull where bones fuse together |
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Bone marrow |
Fills space in bones. |
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Red bone marrow |
Fetus/young animals. Produces RBC/WBC/platelets |
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Yellow marrow |
In shafts of long bones. Fat. Can convert to red marrow if needed |
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Long bones |
Limbs, metacarpals, digits |
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Flat |
Scapula, ribs, pelvis, skull |
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Short |
Carpus, tarsus |
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Irregular |
Vertebra, patella |
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Articular surfaces |
Makes a joint. On surface of ends of bones |
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Head |
Articular surface on proximal end of long bone (ball and socket ex) |
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Facet |
Vertebra where front of vertebra meets the back to make a joint |
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Process |
Projections off bone surface, where they stick out |
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Transverse process |
“Wings” - like on the sides of vertebra |
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Foramen |
Holes where blood vessels, arteries, veins enter bones |
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Fossa |
Depression in bones where muscles sit |
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Axial skeleton |
Center of body, head to tail not including limbs or pelvis |
