APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -When the Purkinje fibers deliver electrical signals to your ventricles, the ventricles contract. As they contract, blood flows from your right ventricle to your pulmonary arteries and from your left ventricle to your aorta. The aorta is the body’s largest artery. It sends blood from your heart to the rest of your body.

Detailed explanation-2: -During the ventricular contraction portion of the cardiac cycle, the Purkinje fibers carry the contraction impulse from both the left and right bundle branch to the myocardium of the ventricles. This causes the muscle tissue of the ventricles to contract.

Detailed explanation-3: -The Purkinje fibers connect with the ends of the bundle branches to form interweaving networks on the endocardial surface of both ventricles and transmit the cardiac impulse almost simultaneously to the entire right and left ventricular endocardium.

Detailed explanation-4: -The action potential travels from the bundle branches to the Purkinje fibers, which are the terminal branches throughout the inner right and left ventricular wall. As the action potential disperses through the ventricles, the ventricular myocytes depolarize and contract.