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Q27: A scientist injects a Na+ channel blocker into the axon hillock of Neuron A. Neuron A then receives a series of EPSPs at its dendrites that raise the membrane potential at the axon hillock to -55mV. What do we expect to happen?

Q27: A scientist injects a Na+ channel blocker into the axon hillock of Neuron A. Neuron A then receives a series of EPSPs at its dendrites that raise the membrane potential at the axon hillock to -55mV. What do we expect to happen?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Please help with these two questions, thank you so much!!!
Q27: A scientist injects a Na+ channel blocker into the axon hillock of Neuron A. Neuron A then receives a series of EPSPs at its dendrites that raise the membrane potential at the axon hillock to -55mV. What do we expect to happen? Oa. Neuron A fires an action potential b. Neuron A does not fire an action potential Clear my choice Q28: A scientist injects a K+ channel blocker into the axon hillock of Neuron A. Neuron A then receives a series of EPSPs at its dendrites that raise the membrane potential at the axon hillock to -55mV. What do we expect to happen? I a. Neuron A fires an action potential b. Neuron A does not fire an action potential Clear my choice
Transcribed Image Text:Q27: A scientist injects a Na+ channel blocker into the axon hillock of Neuron A. Neuron A then receives a series of EPSPs at its dendrites that raise the membrane potential at the axon hillock to -55mV. What do we expect to happen? Oa. Neuron A fires an action potential b. Neuron A does not fire an action potential Clear my choice Q28: A scientist injects a K+ channel blocker into the axon hillock of Neuron A. Neuron A then receives a series of EPSPs at its dendrites that raise the membrane potential at the axon hillock to -55mV. What do we expect to happen? I a. Neuron A fires an action potential b. Neuron A does not fire an action potential Clear my choice
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