Chpt 12 myelination – Flashcards
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myelination
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a multi layered lipid & protein that convers axons (increase from birth to maturity as you develop your myelin is growing)
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myelin sheath
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covering on the axon it electrically insulates the axon & increase the speed on nerve impulses
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node of ranvier
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the gaps that form between the myelin
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neurolemma
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outer necleated layer of a schwann cell which aid in regeneration when injured
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gray matter
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found in brain & spinal cord, composed of neurons cell bodies, dendrites, unmyelinated axons & neuraglia cells
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whtie matter
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found in brain & spinal cord, composed of myleinated axons, which make it whitish