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22 Cards in this Set
- Front
- Back
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Bone |
Supports & protects soft tissues of the body |
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Collagon |
Large protein molecules that constitutes 90% of bones organic content (Gives bones flexibility) |
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Hydroxyapatite |
Dense inorganic material that stiffens the collagen of mature bones ( gives bone rigidity) |
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Bone modeling and remodeling |
Bone is laid down, maintained, & remodeled |
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Osteoblasts |
Produces the organic portion of bone matrix (osteoid) which is later mineralized |
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Osteocytes |
Osteoblasts that become surrounded by bone matrix (mature bones cells responsible for bone maintenance & communication) |
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Osteoclasts |
Cells that dissolve or resorb bone (large cells with acidic border that diminerizes bone tissue & enzymes that dissolve collagen) |
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(Surface of bone) Periosteum |
Thin tissues on outer surface of bones (missing in dry bones)... Tough, vascularized membrane that nourishes bone... contains bone-forming cell |
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Endosteum |
Membrane on inner surface of bone... contains bone forming cell |
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(Form of bone) Trabecular (spongy) bone |
Irregular framework of bony spicules |
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(Form of bone) Compact (cortical) bone |
Dense bone that covers the trabecular bone |
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Haversian Canals |
Narrow trenches aligned with long axis of bone that contains nerves & blood vessels |
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Volkmanns Canals |
Short transverse Canals connecting Haversians Canals to another (Canalioculi) |
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Haversian System or osteon |
Entire set of circular layers of bone surrounding a single Haversian Canal |
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Lacunae |
Small cavities found within each lamella containing an Osteocryte |
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Canaliculi |
Transports nutrients to osteocytes |
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Types of bones |
Long bone Short bone Flat bones Irregular bones |
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Short bones |
Trabecular bone covered by thin layer of compact bone ( wrist and ankle |
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Flat bones |
Composed of two layers of compact bone covering a thing layer of trabecular bone |
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Sagittal plane |
Cut body from left and right |
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Coronal plane |
cut body from front and back |
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Transverse plane |
Cut body from top & body |
