Multiple Choice
Which of these statements correctly describes pacemaker activity?
A) It refers to spontaneous depolarizations of the membrane resulting from shifts in passive ionic fluxes accompanying automatic changes in channel permeability.
B) It refers to spontaneous depolarizations of the membrane due to cyclical changes in Na+-K+-pump activity.
C) It is characteristic of single-unit smooth muscle but is not found in any other muscle type.
D) It is characteristic of multiunit muscle but is not found in any other muscle type.
Correct Answer:
Verified
Correct Answer:
Verified
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