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13 Cards in this Set
- Front
- Back
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a sequence of rapidly occuring events that decreasesand eventually reverses the membrane potential and then restores it to the resting state, a nerve impulse
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graded potential
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a small deviation from the resting membrane potential that makes the membrane either more or less polarized
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inhibitory postsynaptic potential
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period of time when a second action potential can be initiated with a very strong stimulus
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relative refractory period
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the minimum level of depolarization required for a nerve impulse to be generated
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threshold
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the recovery of the resting membrane potential
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repolarization
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a neurotransmitter caused depolarization of the postsynaptic membrane
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excitatory postsynaptic potential
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a neurotransmitter caused hyperpolarization of the postsynaptic membrane
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inhibitory postsynaptic potential
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time during which a neuron cannot produce an action potential even with a very strong stimulus
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absolute refractory period
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polarization that is less negative than the resting level
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depolarizing graded potential
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results from the buildup of neurotransmitter released simultaneously by several presynaptic end bulbs
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spatial summation
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the hyperpolarization that occurs after the repolarizing phase of an action potential
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after hyperpolarizing phase
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polarization that is more negative than the resting level
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hyperpolarizing graded potential
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results from the buildup of neurotransmitter from the rapid, successive release by a single presynaptic end bulb
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temporal summation
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