Bio47S11HO16

Bio47S11HO16 - Biology 47 Human Anatomy Lecture 16...

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1 Biology 47 – Human Anatomy Lecture 16 Respiratory System Respiratory System : Functions : a. Exchange respiratory gases with blood Deliver : Remove: GOAL : b. Provide effective : Maximize lung epithelial exposure to: c. Condition air along transit : Clean, warm, & humidify air d. Produce sounds : e. Help regulate blood : Upper Respiratory System : Structures outside thoracic cavity Nasal Cavity, Paranasal sinus & Pharynx & Larynx 1. Nasal Cavity : “ Air preparation Functions : a. “ Prepares ” inhaled air: b. Olfactory Sensations : Air Preparation : a. Filter inhaled particulates: b. Humidify air: Prevent : Desiccation & damage to : Water necessary to: c. Warm air: Higher temperature : 2. Paranasal Sinuses : Mucous membrane lined spaces in skull bones
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2 Functions : a. Aid in Phonation : b. Aid in : c. Reduce : 2. Pharynx : “ Common Passage Nasopharynx : Superior region Pharyngeal Tonsils (Adenoids) : Function : Auditory Tube (Eustachian) opening : Function : Clinical Application : Route for ear infections * Especially in children: 3. Larynx : “ Voice-Box” - “Adam's Apple Location : Cervical region : Attached to : Functions : a. Protect entrance : b. Pronation : Protected Entrance : Glottis : Opening : Epiglottis : Covers glottis: Phonation : Sound produced by : a. Vocal Folds – Cords (True Folds) : Composition : Mucous membrane covered : Pitch altered by tension of ligament: Pulled by : b. Vestibular Folds – Cords (False Folds) : Mucosal folds located superior to :
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3 • Laryngeal Cartilage : 9 cartilages total a. Thyroid Cartilage
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This note was uploaded on 09/02/2011 for the course BIO 47 taught by Professor Peters during the Spring '11 term at West Valley.

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Bio47S11HO16 - Biology 47 Human Anatomy Lecture 16...

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