| Library / English Dictionary |
ATRIOVENTRICULAR
| Pronunciation (US): |  | (GB): | |
I. (adjective)
Sense 1
Meaning:
Relating to or affecting the atria and ventricles of the heart
Example:
atrioventricular disease
Synonyms:
atrioventricular; auriculoventricular
Classified under:
Relational adjectives (pertainyms)
Pertainym:
atrium (any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart))
ventricle (a chamber of the heart that receives blood from an atrium and pumps it to the arteries)
Context examples:
Stimulation of beta-1 adrenergic receptors causes an increase in myocardial contractility, heart rate, automaticity, and atrioventricular (AV) conduction while stimulation of beta-2 adrenergic receptors causes bronchiolar and vascular smooth muscle dilatation.
(l-Norepinephrine, NCI Thesaurus)
An electrocardiographic finding of a type of atrioventricular dissociation characterized by the atria (P waves) and ventricles (QRS complexes) beating at similar rates, although independently.
(Isorhythmic Atrioventricular Dissociation, NCI Thesaurus/CDISC)
A tachycardia arising in the conduction tissues surrounding the atrioventricular node.
(Junctional Tachycardia by ECG Finding, NLM, Medical Subject Headings)
The latter is characterized by defects in the atrial and ventricular septa and a common atrioventricular valve.
(Complete Atrioventricular Septal Defect with Tetralogy of Fallot, NCI Thesaurus)
It results from an increased automaticity in the atrioventricular node and His bundle.
(Congenital Bundle of His Tachycardia, NCI Thesaurus)
An electrocardiographic finding of delayed or blocked cardiac electrical impulse conduction from the atria to the ventricles at the level of the atrioventricular node.
(Atrioventricular Block by ECG Finding, NCI Thesaurus)
A small mass of specialized cardiac muscle fibers, located near the ostium of the coronary sinus and giving rise to the atrioventricular bundle of the conduction system of the heart.
(Atrioventricular Node, NCI Thesaurus)
An electrocardiographic assessment of cardiac atrioventricular conduction.
(Atrioventricular Conduction ECG Assessment, NCI Thesaurus/CDISC)
A bundle of specialized heart muscle fibers that conducts impulses from the atrioventricular node to the ventricles.
(Atrioventricular Bundle, NCI Thesaurus)
Any of the four heart valves, including the two atrioventricular valves and the two semilunar valves, that regulate the flow of blood through the chambers of the heart.
(Cardiac Valve, NCI Thesaurus)
