Breathing has always symbolized life. The place where the blood is enriched with life-giving oxygen is the lungs, which are connected to the external environment by the airways. The airways include the nasal cavity, pharynx, larynx, trachea and bronchi, which branch in the lungs into smaller bronchi, which eventually lead to the alveoli. The alveoli are similar to tiny, half-millimeter, air-filled sacs. The walls of the alveolus are interwoven with fine blood vessels, capillaries, through which blood flows into the lungs through the pulmonary artery. The blood of these capillaries is therefore in close proximity to the alveolar air, which greatly facilitates the exchange of oxygen and carbon dioxide.
Not enough people about their lungs when taking care of their health. At the same time, it is an extremely important part of the body. Its damage is even the third most common cause of death. So you need to take care of your lungs.
Did you know that an adult's lungs consist of about 300 million alveoli, which together cover an area of about 140 m2 and their total volume is 4-6 liters, and that even after the deepest exhalation, there is still about 1.5 liters of air left in the lungs?
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