atrioventricular canal

atrioventricular canal
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 the interatrial and interventricular septa due to arrest in development of the endocardial cushions.

Medical dictionary. 2011.

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