PULMONARY alveolar microlithiasis is a rare and extraordinary disease in which microscopic stones are found within the pulmonary alveoli. The lungs, which are heavy and stony hard, cut with the ...
You have millions of air sacs (alveoli) in your lungs. These air sacs move oxygen into your blood. Alveolar walls contain surfactant. This is a substance made of fats, proteins, and other substances.
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