MICROANATOMY

Detailed explanation-1: -The lower chambers-the right and left ventricles-pump blood out of your heart.

Detailed explanation-2: -The upper two chambers are called atria (singular: atrium) and the lower two are known as ventricles (singular: ventricle).

Detailed explanation-3: -The left ventricle is one of four chambers of the heart. It is located in the bottom left portion of the heart below the left atrium, separated by the mitral valve. As the heart contracts, blood eventually flows back into the left atrium, and then through the mitral valve, whereupon it next enters the left ventricle.

Detailed explanation-4: -The two upper chambers of your heart are called atria, and the two lower chambers are called ventricle. Blood flows from the body and lungs to the atria and from the atria to the ventricles. The ventricles pump blood out of the heart to the lungs and other parts of the body.