Which of the Following Does Not Occur When Norepinephrine Is

question 168

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.

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