Atrioventricular conduction
atrioventricular conduction
atrioventricular conduction n.
Abbr. Forward conduction of the cardiac impulse from the atria to ventricles via the atrioventricular node, represented in an electrocardiogram by the P-R interval.
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- Atrioventricular dissociation
atrioventricular dissociation atrioventricular dissociation n. A condition in which the atria and ventricles contract independently, especially as resulting from the slowing of an atrial pacemaker or the acceleration of a ventricular pacemaker.
- 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.
- 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.