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10 Cards in this Set
- Front
- Back
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What helps maintain the polarization in a resting neuron???
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sodium/potassium pump
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Is acetylcholine an excitatory or inhibitory transmitter???
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EXCITATORY
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What causes un undershoot when the action potential passes along the membrane??
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K+ ions continue to pass across the membrane until it is hyperpolarized
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What two factors effect degree of stimuli???
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-number of neurons that fire
-frequency of the firing |
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what are the three things every neural circuit must have ???
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-processing
-transmission -reception |
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what is meant self-propogating?
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once started an action potential will move donw the entire axon until it reaches the endplates.
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what is the usual net charge of a resting axon membrane??
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-70 mV
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how long does it usually take for an axon membrane to re-establish its gradient????
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1-10 ms
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A synapse usually connects (two/many) neurons
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MANY
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what ion rushes leaks out of the neuron in repolarization???
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K+
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