atrioventricular
/ˌeɪtrioʊvɛnˈtrɪkjələr/
adjective
- Relating to the atria (upper chambers) and ventricles (lower chambers) of the heart.
- An atrioventricular septal defect is a hole in the wall separating the heart's chambers.
- The atrioventricular valves control blood flow between the heart's upper and lower chambers.
- Doctors studied the atrioventricular conduction system to understand the patient's irregular heartbeat.