They first measure the resting potential of the axon. How would you expect the new resting potential to compare to the normal resting potential of the axon? The new resting potential is more positive. The new resting potential is more negative. The new resting potential is very similar.

They first measure the resting potential of the axon. How would you expect the new resting potential to compare to the normal resting potential of the axon? The new resting potential is more positive. The new resting potential is more negative. The new resting potential is very similar.

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter4: Principles Of Neural And Hormonal Communication

Section: Chapter Questions

Problem 9RE

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They first measure the resting potential of the axon. How would you expect the new resting potential to compare to the normal
resting potential of the axon?
The new resting potential is more positive.
The new resting potential is more negative.
The new resting potential is very similar.

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When the action potential begins, Na+ gates open, allowing Na+ to cross the membrane. The charge difference across the axon membrane changes to a.negative outside and positive inside. b.positive outside and negative inside. c.neutral outside and positive inside. d.There is no difference in charge between outside and inside.
Which is the correct order of the firing of a neuron? a. resting potential, threshold, action potential, refractory period b. resting potential, threshold, refractory period, action potential c. action potential, resting potential, refractory period, threshold d. threshold, resting potential, refractory period, action potential
In the laboratory, researchers can apply an electrical stimulus at any point along the axon, making action potentials travel in both directions from the point of stimulation. An action potential moving in the usual direction, away from the axon hillock, is said to be traveling in the orthodromic direction. An action potential traveling toward the axon hillock is traveling in the antidromic direction. If we started an orthodromic action potential at the axon hillock and an antidromic action potential at the opposite end of the axon, what would happen when they met at the center? Why?
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The initial rise in the membrane potential of an axon upon stimulation is called the........... phase of the ...............
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If the middle of an axon were depolarized to threshold, in which direction could the action potential propagate?
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At maximal stimulation, much above threshold, how long will it be until an axon fires the next AP? A.The absolute refractory period B.The relative refractory period C.The absolute and relative refractory periods
A change in the axon membrane potential from -70 mV to -64 mV would be called a depolarization polarization hyperpolarization potential
Early in an action potential, the inside of the axon becomes less negatively charged relative to the outside, this is called. Polarization Depolarization Hyperpolarization Repolarization ---------------------------------- Neurotransmitters -gated (ligand gated) ions channels are important for ____, while voltage gated ion channels are important for ____ Communication between neurons; communication within neurons communication within neurons; Communication between neurons ------------------------------- In gross neuroanatomy we are interested in structures that are NOT visible to the naked eye. True or false.