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20 Cards in this Set
- Front
- Back
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Bone matrix is layered in thin sheets known as...
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bone lamellae
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Bone ground substance is like that of.....
(organic matrix) |
cartilage with firm consistemcy
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Bone fibers form mineral salts deposited as particles over organic matrix. what makes up 85%?
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Ca2 PO4- calcium phosphate
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Bone cells are called
function? |
osteocytes- mature inactive cells,
maintain bone matrix |
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Osteogenic cells or osteoprogenitor cells are found?
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on the surface
they give rise to osteoblasts and probably osteoclasts |
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Osteoblasts are?
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bone forming cells
found on bone surface |
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Osteoclasts are ?
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bone destroying
large giant cells w/ multiple nuclei and vacuolated cytoplasm |
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Periostium is? and made of?
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membrane on outer surface of bone
-outer fibrous and inner osteogenic layers |
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Endosteum is? made of?
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membrane lining bone marrow cavities
-made of osteogenic layers |
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Types of Bone are
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Compact (ivory)
cancellous(spongy) |
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Compact bone is found in shafts of long bones, Bone lamellae have characteristic arrangement
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external circumfrential(periosteal)
-internal circumferential (endosteal) -haversian lamellae interstital lamellae volkmanns canals sharpeys fibers |
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External Circumferential (periosteal) where located?
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under periosteum
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Internal circumferential , where located?
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under endosteum
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Haversian lammellae
(haversian system) |
concentric around haversian canals, contain bllod vessels, nerves, canal and lamellae make Haversian system
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interstitial lamellae is where?
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between haversian system
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Volkmanns canal
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connevt haversian canals together, or connect haversian to periosteum, endosteum
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Sharpeys fibers
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attach periosteum to bone and stgrengthen the attachments of muscle to bone
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Cancellous (spongy) bone
found where? |
epiphysis of long bone, short, flat, irregular.
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Cancellous is made up of multiple irregular bone marrowcavities seperated by?
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bone trabeculae
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Cancellous bone marrow cavities lined with endosteum and filled with?
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red(active)marrow
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