Evidence-based
Lungs & Breathing
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•Last Updated: August 16, 2022
The lungs are paired organs located in the thoracic cavity, and their primary function is atmospheric gas exchange: taking in oxygen and eliminating carbon dioxide. Breathing is the mechanical process of moving air into and out from the lungs — a function coordinated by the lungs, the musculoskeletal system of the thorax, and the timing control by the midbrain and brainstem.

