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Why do alveoli harden?
Professor Zhang from the Department of Respiratory and Critical Care Medicine of the First Hospital of Peking University published a paper entitled "Morphological Changes of Patients' Lung and Dynamic Changes of Airway Breathing" in The Lancet. This article is from The Lancet? An article in the journal The Lancet Research shows that early use of a measure can change the lung morphology of patients. ? Sleep on your stomach? In this sleeping position, the lungs are compressed and will be stiff? That was not the case.

As we know, alveoli, like elastic big balls, can exert certain pressure on the surroundings to make them? Working normally? . But once the pressure is too high, it will be deformed: blocked and thickened, which will lead to emphysema and other problems. ..... The dyspnea (wheezing) we are hearing now is actually the pressure response caused by the air squeezing of alveoli. Alveola is the passage for air to enter the lungs, and its main function is to provide oxygen and carbon dioxide, which plays the role of lubrication and cooling. It consists of many small bubbles, each of which has a different function.

They are interconnected with the surrounding tissues, generating a certain pressure to maintain their normal shape. If the pressure is too high, it will deform: the vesicle will become bigger and thicker, which will lead to difficulty in breathing. So alveoli are also called? Lung sac? . When alveoli become inflated, air will be squeezed out (inflated) to form a so-called alveolar cavity. Because after the liquid in the alveoli is mixed with air to form sputum, the liquid will overflow from the center of the alveoli to form a circle? Bubbles? Come on, this? Bubbles? When mixed with air, it forms a so-called chest cavity.

The lung is a place for gas exchange. Gas enters the human body, first through the alveoli and then through the lungs. Alveolar stiffness is not only related to gas exchange, but also related to respiratory function. Alveola is a large spherical membrane. After the gas enters, it will move down to the alveolar surface to some extent, resulting in alveolar edema and difficulty breathing.