Chapter 53.pe - Chapter53 IntroductiontotheRespiratorySystem

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Chapter 53 Introduction to the Respiratory System
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The Respiratory System Components Upper respiratory tract  Lower respiratory tract Function Brings oxygen into the body Allows for the exchange of gases  Expels carbon dioxide and other waste products
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The Respiratory Tract
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Cilia
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Structures of the Upper Airway Nose and nasal cavity Sinuses Pharynx Larynx Trachea Bronchi
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Protective Features of the Upper Airways Hairs filter the air Goblet cells produce mucus to trap material Cilia move the trapped material toward the throat for  swallowing The blood supply close to the surface warms air and  adds humidity to improve gas movement and gas  exchange The cough and sneeze reflexes clear the airways
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Layers of the Bronchial Tubes
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This note was uploaded on 02/19/2011 for the course RNSG 1301 taught by Professor Loftin during the Spring '11 term at Lone Star College.

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Chapter 53.pe - Chapter53 IntroductiontotheRespiratorySystem

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