The Cardiac Conduction System

The video explains the cardiac conduction system, highlighting its independence from the nervous system. It details the roles of the SA node, AV node, and conduction pathways in regulating heartbeats. The sequence of atrial and ventricular contractions is described, emphasizing the importance of the AV delay. The function of bundle branches and Purkinje fibers in ensuring efficient ventricular contraction is also covered.

What is the primary function of the cardiac conduction system?

Explain how the heart can beat without nervous system innervation.

Describe the role of the sinoatrial (SA) node in the cardiac conduction system.

What is the significance of the atrioventricular (AV) node in the conduction process?

What happens if the SA node fails?

Explain the importance of the delay at the AV node.

How do the Purkinje fibers contribute to the contraction of the ventricles?