Question

Identify the four structures that make up the core of the electrical conduction system of the heart.

Answer 1

ANSWER.

Four structures that make the conduction system of heart.

        * SA node (Sinoatrial node).

                SA node act a pacemaker of heart and initiate electrical impulses

                to the AV node.

      * AV node (Atrioventricular node).

                Impulses reaches the AV node from the SAnode through internodal pathways

                transfer to the bundle of his present in the ventricles of heart.

        * Bundle of his.

                Impulses reaches the bundle of his spread to the purkinji fibers present in the

                endocardium.

      * Purkinje fibers.

                Purkinji fibers present in the endocardium receive impulses from the bundle of his

                conduct to the epicardium.