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24 Cards in this Set
- Front
- Back
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epiphysis
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site of spongy bone in adult
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diaphysis
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site of compact bone in adult
scientific name for bone shaft |
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red marrow
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site of hematopoiesis in adult
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yellow marrow cavity
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site of fat storage in adult
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epiphyseal plate
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site of longitudinal growth in a child
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osteocytes
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mature bone cells that maintain bone in a viable state
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atrophy
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lack of exercise results in muscle and bone ______
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stress/tension
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large tubercles and increased deposit of bony matrix occur at sites of _______
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osteoblasts
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immature, or matrix-depositing, bone cells
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osteoclasts
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bone cells that liquefy bone matrix and release calcium to the blood
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The skeletal system consists of..
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206 bones, joints, ligaments, cartilage
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joints
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where bones meet
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ligaments
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connect bone to bone
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cartilage
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strong connective tissue
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Functions of the bones
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1.support internal framework
2.protect soft body organs 3. Movement 4. storage of calcium and phosphorus 5.hematapoiesis- blood cell formation |
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compact bone
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dense, smooth and homogeneous
very strong |
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spongy bone
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has needle-like bone pieces
strong yet light-weight |
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long bones
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longer than they are wide
shaft w/ heads at both ends mostly compact located at the limbs |
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short bones
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cube shaped
mostly spongy wrist and ankles |
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flat bones
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thin and flattened
usually curved 2 layers of compact bone sandwiching a layer of spongy bone skull, ribs, sternum |
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irregular bones
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vertebrae and hip bones
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ossification
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process of bone formation.
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periosteum
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fibrous connective tissue membrane covering diaphysis
connected to bone by sharpey's fibers contains osteblasts |
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osteocyte
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mature bone cell
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