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Basic Bone Biology
basic bone biology
14
Anatomy
Undergraduate 4
11/28/2008

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Cards

Term
2 components to bone
Definition
1. extracellular matrix
2. cells
Term
composition of extracellular matrix
Definition
-collagen
-hydroxapatite
Term
3 types of bone cells
Definition
1. osteocytes
2. osteoblasts
3. osteoclasts
Term
osteocytes
Definition
cell of a bone
Term
osteoblasts
Definition
produces new bone
Term
osteoclasts
Definition
eat away at bone
Term
3 types of bone, as seen from a cross-section
Definition
1. woven
2. plexiform
3. lamellar
Term
woven
Definition
not spatially organized
Term
plexiform
Definition
organized (not found in humans - found in cows, horses, animals that grow quickly)
Term
lamellar
Definition
organized in multiple layers with cells between
Term
osteons
Definition
clear structures
-age determination
Term
periosteum
Definition
layers of cells, closely attached to bone, protects, has regenerative properties
Term
endosteum
Definition
similar to periosteum but not as active in humans as in other species
Term
2 types of bone function
Definition
1. intramembranous (not predominant in humans)
2. endochondral
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