| About lungs |
The lung is an organ belonging to the respiratory system and interfacing to the circulatory system of air-breathing vertebrates. Its function is to exchange oxygen from air with carbon dioxide from blood. The process in which this happens is called "external respiration" or breathing. There are also nonrespiratory functions of the lungs. Medical terms related to the lung often start in pulmo- from the Latin word pulmones for lungs.
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