A report on Heart, Atrioventricular node and Sinoatrial node
The atrioventricular node or AV node electrically connects the heart's atria and ventricles to coordinate beating in the top of the heart; it is part of the electrical conduction system of the heart.- Atrioventricular node
The sinoatrial node (also known as the sinuatrial node, SA node or sinus node) is a group of cells known as pacemaker cells, located in the wall of the right atrium of the heart.- Sinoatrial node
The heart pumps blood with a rhythm determined by a group of pacemaker cells in the sinoatrial node.- Heart
These generate a current that causes the heart to contract, traveling through the atrioventricular node and along the conduction system of the heart.- Heart
A wave of excitation spreads out from the sinoatrial node through the atria along specialized conduction channels.- Atrioventricular node
Other cells within the heart (including the Purkinje fibers and atrioventricular node) can also initiate action potentials; however, they do so at a slower rate and therefore, if the SA node is functioning properly, its action potentials usually override those that would be produced by other tissues.- Sinoatrial node
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Electrical conduction system of the heart0 links
The electrical conduction system of the heart transmits signals generated usually by the sinoatrial node in the heart to cause contraction of the heart muscle.
The pacemaking signal generated in the sinoatrial node travels through the right atrium to the atrioventricular node, along the Bundle of His and through bundle branches to cause contraction of the heart muscle.