Multiple Choice
Which of the following does not occur when norepinephrine is released onto pacemaker cells?
A) The permeability of Na+ channels increases.
B) The resting potential drifts up more rapidly.
C) The permeability of Ca2+ channels increases.
D) The interval between action potentials increases.
E) The heart beats faster.
Correct Answer:
Verified
Correct Answer:
Verified
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