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pugsrule915
on FreezingBlue Flashcards.
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long bones
- longer than they are wide and are slightly curved for strength
- ex: femur, tibia, fibula, humerus, phalanges (usually in the extremities)
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short bones
- cube-shaped and are nearly equal in length and width
- ex: carpal, tarsal
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flat bones
- broad and thing
- cover and protect soft body parts
- ex: cranial bones, sternum, ribs
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irregular bones
- have varied shapes and sizes and are commonly clustered
- ex: vertebrae, certain bones of the ears and face
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diaphysis
composed of several tissue layers
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diaphysis tissue layers
- periosteum
- compact bone
- medullary cavity
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periosteum
- thin fibrous outer membrane
- contains blood vessels to supply nutrients and nerves to signal pain
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compact bone
thick, dense outer layer
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purposes of compact bone
- serves as a place of attachment for muscles
- provides protection
- gives durable strength to the bone
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medullary cavity
inner layer
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epiphysis
- distal epiphysis, proximal epiphysis
- bulbous shape to provide space for muscle and ligament attachments near the joints
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two kinds of bone
- compact (dense)
- spongy (cancellous)
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spongy (cancellous) bone
porous, highly vascular inner portion
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