SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY
Lung of a non-smoker, post-mortem. The black dots seen here are the result of air pollution. The lungs are used to oxygenate the blood and remove carbon dioxide from the blood. Post-mortem examinations, also known as autopsies, are carried out to identify a cause of death, and to assess the health of a dead person's organs.
Model release not available. Property release not required.