which are Communication between neurons is mediated by rapid changes in propagated along the length of axonal membranes. These rapid changes are referred to as action potentials; membrane potentials stimuli; action potentials energy; RMPs membrane potential; action potentials

which are Communication between neurons is mediated by rapid changes in propagated along the length of axonal membranes. These rapid changes are referred to as action potentials; membrane potentials stimuli; action potentials energy; RMPs membrane potential; action potentials

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

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter3: The Plasma Membrane And Membrane Potential

Section: Chapter Questions

Problem 4TAHL

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Question

which are
Communication between neurons is mediated by rapid changes in
propagated along the length of axonal membranes. These rapid changes are referred to as
action potentials: membrane potentials
stimuli; action potentials
energy; RMPs
membrane potential : action potentials

B
A
C
Match the action potential phase in the plot below with the correct image below showing the
Na+/K+ ATPase and voltage-gated K+ and Na+ channels.
+50-
D
-50-
-70-
0
E
A
B
M
D
+ OUT
-IN
[Choose ]
[Choose]
[Choose]
SHE
- OUT
IN
+ OUT
IN

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Graph of membrane potential versus time The graph above represent time in milliseconds. At what time (in milliseconds) is the inside of the neuron the most positive and why? Explain why the membrane potential changes at X. Explain what is happening at point C to the sodium and potassium ions and how this is affecting the membrane potential. Describe two things that contribute to the resting membrane potential.
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The membrane potential caused by differences in ions across the plasma membrane of an electrically excitable cell (when not stimulated) is called: action potential resting membrane potential graded potential local potential
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