Term
|
Definition
| mature bone cells that cannot divide |
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Term
|
Definition
| mature bone cell that produces new bony matrix |
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Term
|
Definition
| mesenchymal cells that produce cells that differentiate into osteoblast |
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Term
|
Definition
| remove and remodel bone matrix |
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Term
| Functions of skeletal system: |
|
Definition
| 1. support 2. storage of minerals 3.leverage 4. blood cell production 5. protection |
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|
Term
| Classifications of bones (6): |
|
Definition
| 1. long 2. short 3. sesamoid 4. flat 5. sutural 6. irregular |
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|
Term
| 206 total bones: How many in axial skeleton and appendicular skeleton? |
|
Definition
axial= 80 bones
appendicular= 126 bones |
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Term
| appositional bone growth.. |
|
Definition
| increases bone diameter of existing bones |
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Term
|
Definition
-fibrous outer layer
-cellular inner layer |
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|
Term
| periosteum functions (3): |
|
Definition
1) isolate bone from surrounding tissue
2) route for blood and nervous supply
3) actively participate in bone growth and repair |
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Term
|
Definition
| strongly connect tendons, ligaments, and joint capsules to bone through periosteum |
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Term
|
Definition
| incomplete cellular layer lining the medullary cavity |
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Term
|
Definition
| limbs are short, trunk is normal size |
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Term
|
Definition
| reduction in growth hormone leads to short bones |
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Term
|
Definition
| overproduction of growth hormone before puberty |
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Term
|
Definition
| causes long slender limbs, may also cause cardiovascular issues |
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Term
|
Definition
| growth hormone levels rise causing thicker bones (esp in face) after puberty |
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|
Term
| fibrodysplasia ossificans progressive (FOP) |
|
Definition
| gene mutation that causes bones deposition around skeletal muscles |
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|
Term
| most abundant mineral in the body is... |
|
Definition
calcium
~99% deposited in skeleton |
|
|
Term
| levels of calcium controlled by activities of: |
|
Definition
| intestines, bones, and kidneys |
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Term
| As a calcium reserve, skeleton has primary role in ________ |
|
Definition
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Term
|
Definition
| crack or break in bone due to extreme mechanical stress |
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|
Term
| steps of fracture repair (4): |
|
Definition
1) fracture hematoma develops (blood clot)
2) calluses form
3) calluses replaced and dead bone removed
4) remodeling of healed bone |
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|
Term
| completely internal fractures (only seen on xrays) are known as ________ |
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Definition
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|
Term
| fractures that project through the skin are known as _________ |
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Definition
|
|
Term
| open or compound fractures are more dangerous because ______________ |
|
Definition
| uncontrolled bleeding and infection |
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