Bachmann's bundle is one of the four conduction tracts that make up the atrial conduction system of the heart which is responsible for transmitting the pacemaking impulses of the sinoatrial node to the rest of the heart. Bachmann's bundle originates in the sinoatrial node and is the only tract that conducts action potentials to the left atrium. The heart and lungs, from an older edition of Grays Anatomy. ... The sinoAtrial node (abbreviated SA node or SAN, also called the sinus node) is the impulse generating (pacemaker) tissue located in the right atrium of the heart, and thus the generator of sinus rhythm. ... Anterior (frontal) view of the opened heart. ...
Bachmann's bundle and the atrial conduction system
Besides Bachmann's bundle, the other three conduction tracts are known as the anterior, middle, and posterior tracts, which run from the Sinoatrial Node to the atrioventricular node, converging in the region near the coronary sinus. Atrial automaticity foci are within the atrial conduction system. The concentration of converging conduction tracts near the coronary sinus results in considerable automaticity activity originating in that area. In zootomy, several terms are used to describe the location of organs and other structures in the body of bilateral animals. ... The English word POSTERIOR is identical to the original Latin adjective, and has two different uses : as an ADJECTIVE, it indicates that someone or something is behind another, either spatially or chronologically it also became a SUBSTANTIVE, indicating the rear-end, especially of a person, i. ... The atrioventricular node (abbreviated AV node) is an area of specialized tissue between the atria and the ventricles of the heart, which conducts the normal electrical impulse from the atria to the ventricles. ... The coronary sinus is a collection of veins joined together to form a large vessel that collects blood from the myocardium of the heart. ...
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