Multiple Choice
How does inhibition of the Na⁺/K⁺ ATPase increase the force of heart muscle contraction?
A) It increases cytosolic Na⁺ and therefore decreases Ca²⁺ export.
B) It increases cytosolic K⁺ and therefore decreases Ca²⁺ export.
C) It decreases cytosolic Na⁺ and therefore decreases Ca²⁺ export.
D) It decreases cytosolic K⁺ and therefore decreases Ca²⁺ export.
Correct Answer:
Verified
Correct Answer:
Verified
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