When does the atrial kick begin?
A) Just before atrial systole
B) During atrial repolarization
C) During the impulse delay in the atrioventricular node
D) Simultaneously with ventricular excitation

Question

Quizplus · Accepted Answer

As the impulse travels through the atrioventricular node,there is a 100-ms delay in conduction.This delay is important because it allows the atria to become fully depolarized and contract before ventricular excitation begins.This allows the atria to contract and empty,which has been dubbed atrial kick,contributing to optimal ventricular filling.

When Does the Atrial Kick Begin