In cystic fibrosis, a thick dry mucus builds up in the alveoli. This thick mucus clogs the airways and prevents air from reaching the lungs.
As a result, the lungs cannot get the oxygen they need, and the body cannot get rid of the carbon dioxide it produces. This can lead to respiratory failure and death.
Cystic fibrosis is a hereditary disease that affects the lungs and other organs. The disease is caused by a defective gene that controls the movement of salt and water in and out of cells. This defect causes the mucus to become thick and sticky.
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