Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Complete the sentence:
ions initiate depolarization of cardiac muscle
cells and
ions are responsible for repolarization.
Select one:
O a. Na*, K*
O b. K*, Na*
O c. Ca2+, Na*
O d. Ca?, K*
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Transcribed Image Text:Complete the sentence: ions initiate depolarization of cardiac muscle cells and ions are responsible for repolarization. Select one: O a. Na*, K* O b. K*, Na* O c. Ca2+, Na* O d. Ca?, K*
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Introduction:

Excitability is defined as the ability of the living tissue to give response to a stimulus. In all the tissues, the initial response to a stimulus is electrical activity in the form of an action potential. This electrical activity is followed by mechanical activity in the form of contraction, secretion, etc.

Action potential in a cardiac muscle is different from that of other muscles and nervous tissues.

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