Why Is the Electrical Impulse Temporarily Delayed at the Atrioventricular

question 33

Multiple Choice

Why is the electrical impulse temporarily delayed at the atrioventricular (AV) node?

• A)to allow complete emptying of the ventricles
• B)to allow more sodium buildup in the myocardial cells
• C)to allow better filling of the ventricles
• D)to allow complete filling of the atria

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