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Which of the following is most likely to occur if the ECF concentrations of K+ were to increase? HINT: Remember there are many more K+ leaky channels than Na+ on most excitable cell membranes. The rate of K+ movement in or out of the cell would not be affected. The rate of Na+ influx, i.e., movement into the cell, would be higher than normal. The rate of K+ efflux, i.e., movement out of the cell, would be higher than normal. The rate of K+ efflux, i.e., movement out of the cell, would be lower than normal.

Which of the following is most likely to occur if the ECF concentrations of K+ were to increase? HINT: Remember there are many more K+ leaky channels than Na+ on most excitable cell membranes. The rate of K+ movement in or out of the cell would not be affected. The rate of Na+ influx, i.e., movement into the cell, would be higher than normal. The rate of K+ efflux, i.e., movement out of the cell, would be higher than normal. The rate of K+ efflux, i.e., movement out of the cell, would be lower than normal.

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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Which of the following is most likely to occur if the ECF concentrations of K+ were to increase? HINT: Remember there are many more K+ leaky channels than Na+ on most excitable cell membranes. The rate of K+ movement in or out of the cell would not be affected. The rate of Na+ influx, i.e., movement into the cell, would be higher than normal. The rate of K+ efflux, i.e., movement out of the cell, would be higher than normal. The rate of K+ efflux, i.e., movement out of the cell, would be lower than normal.
Transcribed Image Text:Which of the following is most likely to occur if the ECF concentrations of K+ were to increase? HINT: Remember there are many more K+ leaky channels than Na+ on most excitable cell membranes. The rate of K+ movement in or out of the cell would not be affected. The rate of Na+ influx, i.e., movement into the cell, would be higher than normal. The rate of K+ efflux, i.e., movement out of the cell, would be higher than normal. The rate of K+ efflux, i.e., movement out of the cell, would be lower than normal.
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