Term
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Definition
| End of bone (outside of growing plates) |
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Term
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Definition
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Term
Osteoblasts and where do they form |
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Definition
new bone cells end of the diaphysis |
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Term
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Definition
| solid,hard and strong. (middle of bone) |
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Term
| spongy bone and what it is filled with and where is it located on the bone |
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Definition
| contains network of bone;spaces filled with marrow. (towards end) |
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Term
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Definition
| soft spongelike material in the cavities. |
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Term
| increased horomal prodution during puberty creates: |
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Definition
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Term
| during puberty ostoblasts are... |
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Definition
| creating bone faster than the cartilage is expanding |
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Term
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Definition
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Term
| the growth zone decreases in size with.. |
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Definition
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Term
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Definition
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Term
| When does gowth suddenly stop in length and height? |
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Definition
| ends at sexual and physical maturity |
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Term
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Definition
1. Periosteum 2.endeosteum 3.Marrrow (in the middle) |
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Term
How do bones grow in width?
List an example |
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Definition
by adding osteoblasts to the outer surface of the diaphysis.
EX-Excersize -weights |
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Term
| What can be a problem of width in bones? |
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Definition
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Term
| Solution to keep bones a good size? |
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Definition
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Term
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Definition
| secrete enzyms to dissolve the bone from the inside. The canal then fills w/ yellow marrow and cells that provide WBC's |
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Term
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Definition
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Term
| organic material and percent? |
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Definition
| collagen-gives bone flexibility, 35 % |
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Term
| imorganic material and percent |
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Definition
calcuim phosphate calcium carbonate magnesium phosphate 65% |
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Term
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Definition
First skel. made of collagen, then
catrtilage begins to form.
real bones develop in the 8th week of development.
OSSIFICATION |
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Term
Bone formation at birth and give two names for it |
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Definition
| joint hasnt closed on head. called soft spot or fontanel |
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Term
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Definition
tought,fiberous tissue.
contains nerves, blood and lymph vessels |
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Definition
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Definition
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