Heart chambers and blood vessels

pulmonary vein

A vein carrying oxygenated blood from the lungs to the left atrium of the heart.

Aortic Valve

Closes off the lower right chamber that holds the oxygen-rich blood before it is pumped out to the body. Opens to allow blood to leave the heart from the left ventricle to the aorta and on to the body

Mitral Valave

Opens to allow blood to flow to the upper chamber to the lower chamber.

Tricuspid Valve

Opens to allow blood to flow.

left atrium

The left atrium is one of the four chambers of the heart, located on the left posterior side. Its primary roles are to act as a holding chamber for blood returning from the lungs and to act as a pump to transport blood to other areas of the heart.

left ventricle

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. ... The left ventricle is the thickest of the heart's chambers and is responsible for pumping oxygenated blood to tissues all over the body.

right atrium

The right atrium is one of the four chambers of the heart. The heart is comprised of two atria and two ventricles. Blood enters the heart through the two atria and exits through the two ventricles. Deoxygenated blood enters the right atrium through the inferior and superior vena cava.

right ventricle

The right ventricle is the chamber with in the heart that is responsible for pumping oxygen-depleted blood to the lungs. The right ventricle is one of the heart's four chambers. It is located in the lower right portion of the heart below the right atrium and opposite the left ventricle.

Pulmonary Valve

is the valve of the heart that lies between the right ventricle and the pulmonary artery and has three cusps.

vena cava

large vein carrying deoxygenated blood into the heart.

pulmanary artery

the artery carrying blood from the right ventricle of the heart to the lungs for oxygenation.

Arota

the main artery of the body, supplying oxygenated blood to the circulatory system. In humans, it passes over the heart from the left ventricle and runs down in front of the backbone.