Electrical signals move through the mammalian heart in a particular order.Which order is correct?
A)SA node;internodal pathway;AV node;bundle of His;Purkinje fibers
B)AV node;SA node;internodal pathway;bundle of His;Purkinje fibers
C)SA node;AV node;internodal pathway;Purkinje fibers;bundle of His
D)bundle of His;Purkinje fibers;internodal pathway;AV node;SA node

Question

Quizplus · Accepted Answer

This is the correct sequence of electrical signals moving through the mammalian heart. The signal starts at the sinoatrial (SA) node, moves through the internodal pathway, reaches the atrioventricular (AV) node, continues through the bundle of His, and finally spreads throughout the Purkinje fibers.

Electrical Signals Move Through the Mammalian Heart in a Particular