Circulatory Structures and Functions

This is the large vein that returns blood to the heart from the head, neck, and upper limbs

• Superior Vena Cava

• Aorta

• Right Ventricle

• Left Ventricle

This is the largest artery in the body that carries blood away from the left ventricle.

• Superior Vena Cava

• Aorta

• Right Ventricle

• Left Ventricle

This is the main artery that supplies the lungs with deoxygenated blood.

• Pulmonary Artery

• Aorta

• Superior Vena Cava

• Tricuspid Valve

This carries oxygen-rich blood from the lungs to the heart

• Pulmonary Artery

• Mitral Vlave

• Pulmonary Vein

• Tricuspid Valve

This is one of four valves that regulate blood flow from the upper left chamber to the lower left atrium. Has two flaps (leaflets).

• Mitral Valve

• Tricuspid Valve

• Pulmonary Valve

• Inferior Vena Cava

This closes the lower left chamber and opens to allow blood to leave the heart.

• Aortic Valve

• Mitral Valve

• Pulmonary Valve

• Tricuspid Valve

This pumps oxygenated blood to the organs

• Mitral Valve

• Right Ventricle

• Left Ventricle

• Pulmonary Vein

This receives deoxygenated blood and pumps it into the right ventricle.

• Right Ventricle

• Left Ventricle

• Right Atrium

• Left Atrium

This pumps oxygen-depleted blood into the lungs

• Left Atrium

• Right Atrium

• Left Ventricle

• Right Ventricle

This is the large vein that carries blood to the right atrium from the lower and middle body

• Inferior Vena Cava

• Superior Vena Cava

• Right Atrium

• Left Atrium