NEET PG DENTAL EXAM

Detailed explanation-1: -A wall of muscle called the septum separates the left and right atria and the left and right ventricles. These are referred to as the atrial and ventricular septum.

Detailed explanation-2: -The right and left sides of the heart are separated by a muscular wall that prevents blood without oxygen from mixing with blood that has oxygen.

Detailed explanation-3: -The interatrial septum is located between the right and left atria. In the fully formed heart, the interatrial septum has a central depression called the oval fossa (i.e., fossa ovalis), which is a remnant of the foramen ovale, a structure that connected the atria during fetal development.