What is the significance of atrio-ventricular node and atrio-ventricular bundle in the functioning of heart?
The atrioventricular (AV) node is gift withinside the proper atrium, close to the bottom of the inter-auricular septum that separates the proper auricle from the ventricle. It offers upward push to the package of His that conducts the cardiac impulses from the auricles to the ventricles. As the package deal of His passes the ventricle alongside the inter-ventricular septum, it divides into branches - the proper ventricle and the left ventricle.The quit branches of this carrying out device then paperwork a community of Purkinje fibres that penetrate into the myocardium. The auricular contraction initiated through the wave of excitation from the sino-atrial node (SA node) stimulates the atrio-ventricular node, thereby main to the contraction of ventricles thru the package deal of His and Purkinje fibres. Hence, the atrio-ventricular node and the atrioventricular package play a function withinside the contraction of ventricles.
