AV (atrioventricular)


AV (atrioventricular)
AV is the standard medical abbreviation for atrioventricular, a combination that means pertaining to the atria (the upper chambers of the heart) and the ventricles (the lower chambers of the heart). For example, the AV node is an electrical relay station between the atria and the ventricles. Electrical signals from the atria must pass through the AV node to reach the ventricles. The AV node is a major element in the cardiac conduction system that generates electrical impulses within the heart, conducts them throughout the muscle of the heart, stimulates the heart to contract and pump blood, and so controls the heart rate.

Medical dictionary. 2011.

Look at other dictionaries:

  • Atrioventricular septal defect — Classification and external resources ICD 10 Q21.2 ICD 9 745.6 …   Wikipedia

  • Atrioventricular — (having to do with an atrium and ventricle) can refer to: *Left atrioventricular opening *Atrioventricular fistula *Atrioventricular node *The term Atrioventricular valves is used to describe the mitral valve and tricuspid valve …   Wikipedia

  • atrioventricular — adj. 1. 1 relating to or affecting the atria and ventricles of the heart. atrioventricular disease Syn: auriculoventricular. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • Atrioventricular opening — can refer to: * Right atrioventricular opening * Left atrioventricular opening …   Wikipedia

  • atrioventricular bundle — n BUNDLE OF HIS * * * (AV bundle, bundle of His) a bundle of modified heart muscle fibres (Purkinje fibres) passing from the atrioventricular node forward to the septum between the ventricles, where it divides into right and left bundles, one for …   Medical dictionary

  • atrioventricular — relacionado con la aurícula y el ventrículo, en particular la conducción eléctrica entre la primera y el segundo Diccionario ilustrado de Términos Médicos.. Alvaro Galiano. 2010 …   Diccionario médico

  • atrioventricular canal — n the canal joining the atrium and ventricle in the tubular embryonic heart * * * the common canal connecting the primordial atrium and ventricle; it sometimes persists as a congenital anomaly as a result of failure of closure of the gap between… …   Medical dictionary

  • atrioventricular valve — n a valve between an atrium and ventricle of the heart: AURICULOVENTRICULAR VALVE: a) MITRAL VALVE b) TRICUSPID VALVE …   Medical dictionary

  • atrioventricular anuli — atrioventricular valve anuli see a. fibrosus dexter/sinister cordis …   Medical dictionary

  • atrioventricular (AV) extrasystole — atrioventricular junctional premature complex …   Medical dictionary

  • atrioventricular (AV) nodal rhythm — atrioventricular (AV) junctional r …   Medical dictionary


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