Which of the Following Best Explains the Mechanism Called Irritability

question 10

Multiple Choice

Which of the following best explains the mechanism called irritability?

• A)A lower pacemaker site speeds up to take control of the heart.
• B)The normal pacemaker changes its inherent rate.
• C)The ventricles repolarize before they are ready.
• D)The normal pacemaker slows down and gives up control.

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