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NCI Dictionary of Cancer Terms


lung function  listen  (… FUNK-shun)

  A term used to describe how well the lungs work in helping a person breathe. During breathing, oxygen is taken into the lungs, where it passes into the blood and travels to the body’s tissues. Carbon dioxide, a waste product made by the body’s tissues, is carried to the lungs, where it is breathed out. There are different tests to measure lung function. Also called pulmonary function.