The right atrium is one of the heart's upper chambers that plays a role in blood circulation. It collects deoxygenated blood and directs it on a pathway to get oxygen from the lungs. Problems with ...

returns to the heart and enters the left atrium. Blood flows through the left atrium into the left ventricle. The left ventricle pumps the oxygen-rich blood to all parts of the body. Do right and ...

The atria (plural of atrium) are where the blood collects when it enters the heart. The ventricles pump the blood out of the heart to the lungs or around the body. The septum separates the right ...

The atria (plural of atrium) are where the blood collects when it enters the heart. The ventricles pump the blood out of the heart to the lungs or around the body. The septum separates the right ...