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Select the correct answer for each question.  Explain why you chose that answer as opposed to the others.  In other words, explain why the other choices are incorrect. The plateau phase of an action potential in cardiac muscle cells is due to the _____. Efflux of K+ through K+ channels Efflux of Ca2+ through fast Ca2+ channels Influx of Ca2+ through slow Ca2+ channels Influx of Na+ through fast Na+ channels

Select the correct answer for each question.  Explain why you chose that answer as opposed to the others.  In other words, explain why the other choices are incorrect. The plateau phase of an action potential in cardiac muscle cells is due to the _____. Efflux of K+ through K+ channels Efflux of Ca2+ through fast Ca2+ channels Influx of Ca2+ through slow Ca2+ channels Influx of Na+ through fast Na+ channels

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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Select the correct answer for each question.  Explain why you chose that answer as opposed to the others.  In other words, explain why the other choices are incorrect.

The plateau phase of an action potential in cardiac muscle cells is due to the _____.

    1. Efflux of K+ through K+ channels
    2. Efflux of Ca2+ through fast Ca2+ channels
    3. Influx of Ca2+ through slow Ca2+ channels
    4. Influx of Na+ through fast Na+ channels
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