PATHOLOGY

Detailed explanation-1: -The heart has four chambers: two atria and two ventricles. The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle.

Detailed explanation-2: -The three main types of atrial fibrillation are: paroxysmal, persistent, and long-term persistent. Doctors also categorize A-fib as either valvular or nonvalvular.

Detailed explanation-3: -Your heart chambers are four hollow spaces within your heart. There are two atria (upper chambers) called your right atrium and left atrium. In addition, there are two ventricles (lower chambers) called your right ventricle and left ventricle. Each chamber plays an important role in your heart’s functioning.

Detailed explanation-4: -In humans the atria are the two upper chambers of the heart. Each is roughly cube-shaped except for an ear-shaped projection called an auricle. (The term auricle has also been applied, incorrectly, to the entire atrium.)