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10 Cards in this Set
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- Back
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An AP always moves in ___________. This is due to the _____________.
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one direction, refractory period
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__________ wears off over a short distance.
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Local response
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The length constant depends on the ______ of the membrane and the _________ distance.
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Resistance, intracellular
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The length constant increases with the __________ of the fibre.
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Diameter
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There is less damping of __________ in wider fibres.
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Local response
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Wide fibres conduct _____ than thin fibres.
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Faster
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The ____________ increases the membrane resistance.
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Myelin sheath
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What is it called when the action potential jumps from node to node?
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Saltatoire conductance
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Is the conductance larger for myelinised axons?
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Yes
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What is the defect for patients with multiple sclerosis?
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Myelin breaks down, therefore, the conductance of signals through axons is interrupted.
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