Multiple Choice
Acetylcholine slows the heart rate by
A) just increasing ion influx, thus increasing the rate of depolarization.
B) just increasing the permeability to Ca²⁺.
C) just increasing the permeability to K⁺.
D) just decreasing the permeability to Ca²⁺.
E) increasing the permeability to K⁺ and decreasing the permeability to Ca²⁺.
Correct Answer:
Verified
Correct Answer:
Verified
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