In a typical action potential, the membrane potential of the neuron or muscle changes from_____ millivolts to ____ millivolts.

In a typical action potential, the membrane potential of the neuron or muscle changes from_ millivolts to millivolts.

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 3RE

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Concept explainers

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.

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In a typical action potential, the membrane potential of the neuron or muscle changes from_____ millivolts to ____ millivolts.

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"The membrane potential arises from movements of charge that leave ion concentrations practically unaffected, causing only a very slight discrepancy in the number of positive and negative ions on the two sides of the membrane." is true or false.
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Neurons have a resting membrane potential of ___________________. varying votage as type and composition of channels can differ between neurons. theoretically the same votage because the ionic concentration is the same extracellularly and intracellularly for all neurons. equal to the equillibrium potential for potassium. directly opposing the equillibrium potential for sodium.
Given two cells that are identical in all ways except that extracellular concentration of Na+ ions is grater for cell A differ from that that in cell B if stimuli of identical strength were applied to each
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