Question

multiple choice question what is the interatrial septum? the wall that separates the heart from the pericardial cavity the wall that separates the right and left ventricles the wall that separates the right and left atria the wall that separates the atria from the ventricles

Explanation:

The interatrial septum is the partition between the two atria of the heart. The wall separating the heart from the pericardial cavity is the pericardium. The wall separating the right and left ventricles is the interventricular septum. The wall separating atria from ventricles is the atrioventricular septum.

Answer:

The wall that separates the right and left atria