madison chicovsky week 4 - Madison A Chicovsky Anatomy of...

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Madison A. Chicovsky Anatomy of the respiratory system: The respiratory system plays a vital role in the body, by providing your cells with much needed oxygen, as well as excreting carbon dioxide, which can be deadly if allowed to accumulate. The three major parts of the respiratory system are the airways, the lungs, and the muscles of respiration. The nose is used to inhale air into the body. The nasal cavity warms the air as it enters, acting as a filter by purifying the air (removing dust, pollen and other contaminants) before it is passed into the inner body. Inhaling air through the mouth allows more inhalation, but the oral cavity has no hair or filtering techniques meaning the air inhaled will not undergo the filtration process. Air that is inhaled enters the pharynx, where it descends into the larynx via a diversion from the epiglottis. As the pharynx is used for swallowing food as well as breathing, the epiglottis ensures that air can pass into the trachea, and that food enters the esophagus. The larynx acts as a defense
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  • Fall '16
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