An opening in the wall between the two upper chambers of the heart is a(n):

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Quizplus · Accepted Answer

An opening in the wall between the two upper chambers of the heart is an atrial septal defect (ASD). This allows oxygen-rich blood to mix with oxygen-poor blood, which can lead to circulation problems. Ventricular septal defect (VSD) is an opening between the two lower chambers of the heart, while tetralogy of Fallot is a collection of four heart defects that are present at birth. "Septic defect" and "dysarthrosis" are not related to the heart or cardiovascular system.

An Opening in the Wall Between the Two Upper Chambers