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Functions
Functional regions: conducting portion, respiratory portion
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Respiratory Tract Epithelium (R.T.E.):
ciliated pseudostratified columnar with goblet cells
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Nose and Nasal Cavity:
- boundaries
- structural components:
- vestibule
- nasal fossae: conchae (superior, middle, inferior), meatus
- histology: olfactory epithelium, R.T.E.
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Paranasal Sinuses:
- frontal, sphenoid, ethmoid, maxillary
- function
- histology
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Pharynx:
- function
- boundaries and regions (naso, oro, laryngo)
- histology
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Nasopharynx, Oropharynx, Laryngopharynx:
- boundaries
- functions
- histology
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Larynx:
- function
- structure: thyroid, cricoid cartilages
- epiglottis
- arytenoid, cuneiform, corniculate
- cartilages
- mucosal folds: false vocal cord (vestibular ligament and
- fold)
- true vocal cord (vocal ligament and fold)
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Trachea:
- boundaries
- function
- histology:
- mucosa: R.T.E., lamina propria
- submucosa: dense connective tissue, glands
- adventitia: “C” shaped cartilage rings
- trachealis
- carina
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Primary Bronchi:
- structure
- histology
- hilus and root of the lung
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