Parts of the circulatory system

The heart- the heart pumps blood with oxygenated blood with nutrients and recuses blood with waste and moves it to be disposed of located just left of the middle of the chest.

The lungs give oxygen to the blood before travel and are located in the ribs.

Valves keep blood from flowing the wrong way, located in the heart.

Arteries and veins- tubes in which blood flows in and are located all over the body.

Pericardium-three layered sack that protects the heart, located around the heart.