NURSING ANM AND GNM

Detailed explanation-1: -Purkinje fibers The subendocardial surface is part of the endocardium, the inner layer of tissue that lines your heart’s chambers. When the Purkinje fibers deliver electrical signals to your ventricles, the ventricles contract.

Detailed explanation-2: -Purkinje fibers play a major role in electrical conduction and propagation of impulse to the ventricular muscle. Many ventricular arrhythmias are initiated in the Purkinje fiber conduction system (eg.

Detailed explanation-3: -Purkinje fibers work with the sinoatrial node (SA node) and the atrioventricular node (AV node) to control the heart rate. During the ventricular contraction portion of the cardiac cycle, the Purkinje fibers carry the contraction impulse from the left and right bundle branches to the myocardium of the ventricles.