GROSS ANATOMY

Detailed explanation-1: -A typical heart has two upper and two lower chambers. The upper chambers-the right and left atria-receive incoming blood. The lower chambers-the right and left ventricles-pump blood out of your heart.

Detailed explanation-2: -The upper chambers, the right and left atria, receive incoming blood. The lower chambers, the more muscular right and left ventricles, pump blood out of the heart. The heart valves, which keep blood flowing in the right direction, are gates at the chamber openings.

Detailed explanation-3: -The right atrium and ventricle are often referred to together as the right heart, and the left atrium and ventricle as the left heart.

Detailed explanation-4: -There are four chambers: the left atrium and right atrium (upper chambers), and the left ventricle and right ventricle (lower chambers). The right side of your heart collects blood on its return from the rest of your body. The blood entering the right side of your heart is low in oxygen.

Detailed explanation-5: -During diastole, the right atrioventricular (tricuspid) valve opens, and blood flows into the right ventricle.