What 3 things must happen to act by the time it reaches the lungs?
– warmed to 37 degrees C- humidified (100% relative humidity) – filtered of particles
There are several steps involved in the process of air moving from the external environment into the lungs, and these steps must be completed to allow for effective gas exchange to occur. Here are three key events that must happen for air to reach the lungs:
1. Inhalation: The first step in the process of taking air into the lungs is inhalation, where the diaphragm and intercostal muscles contract and expand the chest cavity, causing air to move into the lungs.
2. Gas exchange: Once air reaches the lungs, oxygen and carbon dioxide are exchanged between the air and the bloodstream. This occurs in the alveoli, which are small air sacs within the lungs that are highly permeable to both oxygen and carbon dioxide.
3. Exhalation: After gas exchange has occurred, the final step is exhalation, where the diaphragm and intercostal muscles relax and air is pushed out of the lungs. This process removes carbon dioxide and other waste gases from the body.
Overall, these three events must occur in a coordinated manner for the respiratory system to function effectively and provide the body with the oxygen it needs to survive.
More Answers:
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