ALFRED PASIEKA / SCIENCE PHOTO LIBRARY ALFRED PASIEKA / SCIENCE PHOTO LIBRARY
Heart, with light and lines coming from behind it, computer artwork. The heart is a hollow muscle that pumps blood around the body. Deoxygenated blood from the body is carried into the right side of the heart. From here, the blood travels into the lungs, where it is oxygenated. The blood is then carried into the left side of the heart before travelling back into the body, where it can exchange oxygen for carbon dioxide and start the cycle all over again.
Model release not required. Property release not required.