What is the purpose of the AV nodal delay
A)to ensure that all blood from the atria flows into the ventricles prior to ventricular systole
B)to ensure that all blood from the ventricles flows into the atria prior to atrial systole
C)to ensure that tetanic contraction of cardiac muscle is not possible
D)to ensure that heart rate slows down by parasympathetic stimulation

Question

Quizplus · Accepted Answer

The purpose of the AV nodal delay is to ensure that all blood from the atria flows into the ventricles prior to ventricular systole. This delay allows time for the atria to fully contract and empty their contents into the ventricles before the ventricles contract, leading to efficient blood flow through the heart.

What Is the Purpose of the AV Nodal Delay