Question

Which of the following changes in the pacemaker
and action potential of sino-atrial node cells would
result in an increase in heart rate?
(a) Decrease in the slope of the pacemaker
potential.
(b) Increase (more negative) in the maximum
diastolic potential.
(c) Simultaneous increase (more negative) in
maximum diastolic potential and decrease in
the slope of the pacemaker potential.
(d) Increase in the threshold (more negative) for
activation of calcium channels.​

Answer 1

Answer:

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Explanation:

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