ACLIOr potential +40 Falled Threshold -55 initiations Resting state -70 Stimulus 1 Refractory period 3. 5. 2 Time (ms) Which of the following are true about the propagation of an action potential? O Action potential is triggered by the opening of voltage gated potassium channels Once threshold potential is reached, the neuron always depolarizes O The refractory period prevents propagation back to the point of initiation of the action potential Once initiated, the action potential propagates in an all or nothing fashion Voltage (mV) Depolarization Repolarization

ACLIOr potential +40 Falled Threshold -55 initiations Resting state -70 Stimulus 1 Refractory period 3. 5. 2 Time (ms) Which of the following are true about the propagation of an action potential? O Action potential is triggered by the opening of voltage gated potassium channels Once threshold potential is reached, the neuron always depolarizes O The refractory period prevents propagation back to the point of initiation of the action potential Once initiated, the action potential propagates in an all or nothing fashion Voltage (mV) Depolarization Repolarization

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter32: The Reception And Transmission Of Extracellular Information

Section: Chapter Questions

Problem 15P

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