common atrium


common atrium

a single abnormal atrium in a three-chambered heart in which an interatrial septum is absent.

com·mon a·tri·um

(kom'ŏn ā'trē-ŭm) A single abnormal atrium in a three-chambered heart in which the interatrial septum is absent.
Synonym(s): cor triloculare biventriculare.