What is the term for the specialized muscle fibers that conduct electrical impulses throughout the heart?

The conduction system refers to a network of specialized muscle fibers within the heart that are responsible for transmitting electrical impulses. This system ensures that the heart beats in a coordinated and efficient manner, allowing for proper blood circulation throughout the body.

The key components of the conduction system include the sinoatrial (SA) node, atrioventricular (AV) node, bundle of His, and Purkinje fibers, all of which work together to initiate and propagate electrical signals that trigger heart muscle contractions. This precise coordination is essential for maintaining a regular heart rhythm and effective pumping action.

Understanding the role of the conduction system is fundamental to comprehending how the heart operates, especially in the context of arrhythmias or other electrical conduction disturbances that can impact heart function.