A215: RESPIRATORY COMPONENTSA215: RESPIRATORY COMPONENTSRespiratory Component (note: thisisn't an all-inclusive list!) Anatomical Characteristics (include whatstructures it contains, functions, etc.)Nasopharynx*Choanae End of soft palate(Uvula)* (Lined with pseudostratified ciliated columnar epithelium with goblet cells). Conducts air. Three parts: Uvula, Pharyngotympanic (Eustachian) Tubes, Phayrngeal TonsilsOropharynx*Uvula Level of hyoid* (Lined with nonkeratinized stratified squamous). Conducts air and food. Contains Palatine Tonsils and Lingual Tonsils. Laryngopharynx*Hyoid Larynx* (Lined with nonkeratinized stratified squamous). Conducts air to larynx & food to esophagus.Trachea*Windpipe* Connects larynx to primary bronchi. 15-20 “C-Shaped” hyaline cartilage pieces. Lined by pseudostratified ciliated columnar epithelium with goblet cells. Behind sternum – divides into left & right primary bronchi.Alveolus Openings for gas exchange to take place.Nasal CavityAnterior Space = Vestibule. Posterior Opening = Choanae. Contain respiratory mucosa (pseudostratified ciliated columnar epithelium with goblet cells)Paranasal SinusesPaired cavities in the maxilla, fontal, sphenoid ðmoid bones. Connect to nasal cavity.Right Lung 2 Fissures & 3 lobesLeft Lung 1 fissure, 2 lobes & 1 cardiac notchLarynx“Voice box”. Directs food and liquids to esophagus, conducts air to trachea & vocalization. 9 cartilages & 2 laryngeal muscles.Pleura (both parietal and visceral) Serous membranes. Parietal: attaches directly tothe internal chest wall. Visceral: attaches directlyto the surface of the
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