conduction system of the heart

conduction system of the heart

the network of highly specialized muscle tissue that transmits the electrical impulses needed for a heartbeat. It includes the sinus and atrioventricular (AV) nodes, the conducting fibers between the nodes, the AV bundle (bundle of His), the left and right bundle branches, and the Purkinje fibers. See also cardiac cycle.
enlarge picture
Conduction system of the heart

conduction system of the heart

Enlarge picture
CONDUCTION SYSTEM OF THE HEART
Specialized myocytes in the heart that conduct the electrical impulses throughout the heart. In order of normal conduction, the system consists of the sinoatrial node, the intra-atrial tracts, the atrioventricular node, the bundle of His, the right and left bundle branches, and the Purkinje fibers. See: illustration
References in periodicals archive ?
DISCUSSION: Cardiac complications and ECG abnormalities following snake bite has been reported number of times but not many case reports with involvement of conduction system of the heart has been described.
Congenital disease of the electrical conduction system of the heart or a congenital heart disease can also be a reason of intrauterine rhythm disturbances.
In most severe cases an irreversible congenital atrioventricular block of 3rd degree is manifested due to influence of transplacental antibodies IgG which damage the cells of the electrical conduction system of the heart.
The presence of one or both of these IgG autoantibodies in the mother increases the risk of neonatal lupus erythematosus (NLE), which can cause rash or changes in blood counts or liver function and, in severe cases, can affect the conduction system of the heart, Dr.
A 12-lead view of the heart is the industry standard for assessing the electrical conduction system of the heart, enabling physicians to identify the exact location of weakened heart muscles, as well as providing more comprehensive data on arrhythmias and ischemia.
The abnormality noted in the conduction system of the heart in chronic alcoholics is a prolongation of the QT interval.
It continuously monitors the electrical conduction system of the heart, watching for dangerous patterns and delivering electrical impulses when needed that may range from a tiny pulse like a cardiac pacemaker's to a full, life-saving shock that can return the heart to normal rhythm.