Goes into the lungs through tubes called main-stem bronchi:One main-stem bronchus leads to the right lung and one to the left lungIn the lungs, the main-stem bronchi divide into smaller bronchiThen the bronchi divide into even smaller tubes called bronchiolesBronchioles end in tiny air sacs called alveoli
Question
Goes into the lungs through tubes called main-stem bronchi:One main-stem bronchus leads to the right lung and one to the left lungIn the lungs, the main-stem bronchi divide into smaller bronchiThen the bronchi divide into even smaller tubes called bronchiolesBronchioles end in tiny air sacs called alveoli
Solution
The passage you provided describes the process of how air travels into the lungs. Here's a step-by-step breakdown:
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Air first enters the body through the mouth or nose, goes down the throat through the larynx (voice box) and enters the trachea.
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The trachea divides into two tubes called the main-stem bronchi: one leading to the right lung and the other to the left lung.
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Once in the lungs, these main-stem bronchi further divide into smaller bronchi.
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These smaller bronchi then divide into even smaller tubes known as bronchioles.
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The bronchioles end in tiny air sacs called alveoli. It is in these alveoli that the exchange of oxygen and carbon dioxide occurs.
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