Which of the following delays the electrical impulse to give time for the atria to complete contraction and the ventricles to fill?
A) Bundle of His
B) SA node
C) Bundle branches
D) AV node
E) Purkinje fibers

Question

Quizplus · Accepted Answer

The AV node (Atrioventricular node) delays the electrical impulse to ensure the atria have enough time to contract and the ventricles to fill with blood before they contract. This is a crucial step in the cardiac cycle for maintaining efficient heart function.

Which of the Following Delays the Electrical Impulse to Give