Atrioventricular extrasystole
atrioventricular extrasystole
atrioventricular extrasystole n.
a premature contraction of the heart in which the stimulus arises from either the a-v node or a-v bundle. also called a-v extrasystole.
Read Also:
- Atrioventricular groove
atrioventricular groove atrioventricular groove n. see coronary sulcus.
- Atrioventricular interval
atrioventricular interval atrioventricular interval n. the time from the beginning of atrial systole to the beginning of ventricular systole as measured on an electrocardiogram.
- Atrioventricular nodal extrasystole
atrioventricular nodal extrasystole atrioventricular nodal extrasystole n. a premature beat arising from the a-v node and leading to a simultaneous or almost simultaneous contraction of atria and ventricles. also called a-v nodal extrasystole, nodal extrasystole.
- Atrioventricular nodal rhythm
atrioventricular nodal rhythm atrioventricular nodal rhythm n. the cardiac rhythm that results when the heart is controlled by the atrioventricular node in which the impulse arises in the atrioventricular node, ascends to the atria, and descends to the ventricles more or less simultaneously. also called a-v nodal rhythm, nodal bradycardia, nodal rhythm.
- Atrioventricular septum
atrioventricular septum atrioventricular septum n. the small part of the membranous septum of the heart just above the septal cusp of the tricuspid valve, separating the right atrium from the left ventricle.