LECT16 - Lecture 16: The Respiratory System I. General...

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Lecture 16: The Respiratory System I. General Anatomy of Respiratory System A. Divisions 1. Upper Respiratory Tract a. nose and throat 2. Lower Respiratory Tract a. larynx, trachea, bronchi, lungs B. Functions 1. pulmonary ventilation - inhaling and exhaling 2. external respiration - gas exchange lungs/blood 3. internal respiration - gas exchange blood/body II. Basic Structures A. Nose 1. external portion a. mainly cartilage attached to nasal bones b. external nares (nostrils) c. vestibules - just inside external nares 2. internal portion a. internal nares - connects nose to pharynx b. nasal septum - divides nasal cavity in two c. paranasal sinuses - cavities formed by cranium i. frontal, sphenoidal, maxillary, ethmoidal d. meatuses - passageways formed by conchae i. superior, middle, inferior e. olfactory region - above superior concha 3. FUNCTIONS a. warm and moisten air b. remove dust, debris, microbes c. assist in resonating sound from the larynx B. Pharynx (Throat) 1. nasopharynx - posterior to internal nasal cavity
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This note was uploaded on 10/18/2011 for the course ZOO 3373 taught by Professor Samsam during the Spring '11 term at University of Central Florida.

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LECT16 - Lecture 16: The Respiratory System I. General...

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