The heart is a strong and muscular organ that is about the size of a fist in adults. It pumps blood throughout the body and is located behind the breastbone between the lungs. Deoxygenated blood flows from the heart to the lungs where it gives up carbon dioxide and is freshly oxygenated. From there, the blood returns to the heart and is pumped to the rest of the body.
The lungs are a pair of highly elastic and spongy organs in the chest. They are the main organs involved in breathing. They take in air from the atmosphere and provide a place for oxygen to enter the blood and for carbon dioxide to leave the blood. The lungs are divided into sections, with three on the right and two on the left.
Common Diseases That May Lead to Transplantation
- Congenital/valvular heart disease
- Cystic fibrosis
- Coronary heart disease
- Hypertensive heart disease
- Idiopathic pulmonary fibrosis
- Primary pulmonary hypertension
United Network for Organ Sharing (UNOS) is committed to providing accurate and reliable information for transplant patients. The content on this page was originally created on August 1, 2003 by UNOS and last modified on December 20, 2005.
This Web site is intended solely for the purpose of electronically providing the public with general health-related information and convenient access to the data resources. UNOS is not affiliated with any one product nor does UNOS assume responsibility for any error, omissions or other discrepancies.