Human Circulatory System

Front

Vena cava

Back

Receives deoxygenated blood from the body.

Front

Right atrium

Back

Collects deoxygenated blood and passes it to the right ventricle.

Front

Valve (Right side)

Back

Allows blood to flow into the right ventricle, preventing backflow.

Front

Right ventricle

Back

Pumps blood into the pulmonary artery

Front

Pulmonary artery

Back

Transports deoxygenated blood to the lungs

Front

Pulmonary vein

Back

Receives oxygenated blood from the lungs.

Front

Left atrium

Back

Collects oxygenated blood and passes it to the left ventricle.

Front

Valve (Left side)

Back

Allows oxygenated blood to flow into the left ventricle (prevents backflow of blood).

Front

Left ventricle

Back

Pumps oxygenated blood into the aorta

Front

Aorta

Back

Pumps oxygenated blood to the body.