steps of neurotransmission
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Last updated 4:29 AM on 11/13/22
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16 Terms
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1.
neuron is at resting potential at -70mV
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neurotransmitter binds to dendrite
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binding causes it to change to electrical signal
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Graded potential(electrical signal) goes to axonal hillock to get added up, called summation
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If the sum of the resting potential of -70mV and the graded potential is greater than or equal to the threshold, then the message is sent, if not, then goes back to resting potential.
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depolarize the axon, sodium comes in
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Sodium channels close, potassium channels open
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Potassium out then repolarize
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overshoot of potassium causes hyperpolarization
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back to resting potential
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action potential gets to axon terminal
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when action potential gets to axon terminal, calcium comes in
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calcium causes exocytosis of neurotransmitter
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Neurotransmitter goes into synapse
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Neurotransmitter goes across synapse and binds to recepter, becoming graded potential
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