Lecture 5

Lecture 5 - Oral and Nasal Cavities Nasal Cavity Structure...

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Unformatted text preview: Oral and Nasal Cavities Nasal Cavity Structure Frontal Nasal Ethmoid (Perpendicular Plate) Maxillary Vomer Nasal Cavity Nasal cartilage I S M Mucous membrane Nasal Conchae Increase SA for: Olfaction Air conditioning Filtration Pressure Highly vascular Paranasal Sinuses Function: Lighten facial bones Resonance for voice Clinical Rhinitis Nasal Congestion Sinusitis Oral Cavity Palate Hard: maxillae and Palatines Soft Cleft palate Dentition Incisors (8) Canines (4) Premolars (0/8) Molars (8/12) Deciduous Permanent Salivary Glands Enzymes Cleans teeth Lubrication Sublingual & Submandibular = CN VII Parotid = CN IX Tongue Speech; Swallowing; Mastication; Taste Extrinsic and intrinsic muscles (confined to tongue) [CN X, XII] Tongue Tongue and Tonsils Taste CN VII and IX Tonsils Lymphatic tissue Lingual Palatine Pharyngeal = adenoids Pharynx Common pathway for respiratory and digestive systems Nasopharynx Auditory tube Oropharynx Tonsils Laryngopharynx Epiglottis to cricoid cartilage Larynx Vocal Cords Vestibular fold (false vocal cord) Vocal cord T C ...
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