07e.Nerve Impulse
Quiz by Kelly Gallagher
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7 questions
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- Q1Impulse conduction is fastest in neurons that are _________.myelinatedunmyelinated30s
- Q2Which ion causes neurotransmitters to be released from the axon terminal?calciumsodiumpotassiummagnesium30s
- Q3Immediately after an action potential is propagated, which one of the following ions rapidly diffuses out of the cell into the tissue fluid ____.potassiumironsodiumcalcium30s
- Q4An action potential is caused by an influx of these ions into the cell ____.both potassium and sodiumpotassiumsodiummagnesium30s
- Q5During the resting state, a neuron is ____.repolarized with potassium leaking outpropagating the action potentialpolarized with more sodium outside & more potassium inside the celldepolarized and charged45s
- Q6The structures that carry incoming messages toward the cell body are ___________.axon terminalsdendritesmyelinaxons45s
- Q7Neurons either conduct action potentials along the length of their axons, or they remain at rest. This statement best describes ____.repolarizationthe all-or-none responsegraded potentialsaltatory conduction45s