How does inhibition of the Na+/K+ ATPase increase the force of heart muscle contraction? O It decreases cytosolic K+ and therefore decreases Ca2+ export O It increases cytosolic Na+ and therefore decreases Ca2+ export It increases cytosolic K+ and therefore decreases Ca2+ export O It decreases cytosolic Na+ and therefore decreases Ca2+ export

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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How does inhibition of the Na+/K+ ATPase
increase the force of heart muscle
contraction?
O It decreases cytosolic K+ and therefore
decreases Ca2+ export
It increases cytosolic Na+ and therefore
decreases Ca2+ export
It increases cytosolic K+ and therefore
decreases Ca2+ export
It decreases cytosolic Na+ and therefore
decreases Ca2+ export
Transcribed Image Text:How does inhibition of the Na+/K+ ATPase increase the force of heart muscle contraction? O It decreases cytosolic K+ and therefore decreases Ca2+ export It increases cytosolic Na+ and therefore decreases Ca2+ export It increases cytosolic K+ and therefore decreases Ca2+ export It decreases cytosolic Na+ and therefore decreases Ca2+ export
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