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NSCI281 Phoenix WK4 Respiratory System Analysis and Questions Lab

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The Respiratory System NSCI/281 Version 5 University of Phoenix Material The Respiratory System Animation: Respiratory System Overview After viewing the animation, answer these questions: 1. What are the two functions of the respiratory system? To move air in and out of the lungs and to provide a surface for gas exchange. 2. Name the structures of the upper respiratory tract. Nose, nasal cavity, and pharynx. 3. Name the structures of the lower respiratory tract. Larynx, trachea, bronchi, and lungs. 4. What effect does the nasal cavity have on inhaled air? It is cleaned, warmed, and humidified on its way through the pharynx. 5. Name the structure shared by both the respiratory and digestive systems. Pharynx 6. Name the structure that contains the vestibular and vocal folds. What protective function do these folds have? The larynx, where two pairs of ligaments, together with the mucosa covering them, form the vestibular and vocal folds. Help prevent foreign particles, including food, from entering the lower respiratory system. 7. The vocal folds are also known as the “true vocal cords” produce sound when air passes between them. . Why? Because they 8. Name the organ that maintains an open passageway to and from the lungs. What particular structure helps to keep this passageway open? Trachea, a 10-12cm long tube supported by C shaped cartilages. 9. This passageway divides into two primary bronchi, which upon entering the lungs, continue to divide into smaller bronch ...
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