Conduction Through Which of the Following is Slow to Allow

Question

Conduction through which of the following is slow to allow atria to contract before the ventricles?
A) AV bundle (bundle of His)
B) AV node
C) atria
D) SA node
E) Purkinje fibers

Accepted Answer

The AV node (Atrioventricular node) is designed to delay the transmission of electrical impulses to allow the atria to complete their contraction before the ventricles begin to contract. This ensures proper coordination between atrial and ventricular contractions, which is essential for efficient heart function.