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RESPIRATORY SYSTEM (Structures (NASAL CAVITY
Divided by Nasal SEPTUM…
RESPIRATORY SYSTEM
2 Subdivision
UPPER R.S.
Nose, Nasal Cavity, Pharynx [Throat]
LOWER R.S.
Larynx+Vocal Cords, Trachea, Bronchil Tree, Lungs
Structures
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Respiratory Area
- Nasal CONCHAE
- Nasal MEATUSES
Olfactory Area (Smell)
- W/ OLFACTORY RECEPTORS [neurons]
PARANASAL SINUSES
- Frontal, Sphenoid, Ethmoid, Maxillae
PHARYNX [Throat]
Nasopharynx
- Pharyngeal Tonsil
- 2 Posterior Nasal Aperture + 2 Pharyngotympanic [Eustachian] Tubes
Oropharynx
- Palatine + Lingual Tonsils
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LARYNX [Voice-box]
Unpaired Cartilage
- Thyroid [Adam's Apple]
- Cricoid
- Epiglottis
Paired Cartilage
- Arytenoid (Attaches the vocal cords)
Vocal Cords
- Vestibular Fold / False VC
- Vocal Fold / True VC
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BRONCHIAL TREE and LUNGS
Conduction Zone
- 2 Main Bronchi [1°]
- 5 Lobar Bronchi [2°]
- Segmental Bronchi [3°]
- Terminal Bronchioles
Respiration Zone
- Respiratory Bronchioles
- Alveolar Ducts
- Alveoli (NOT PART OF BRONCHIAL TREE; Only for Respiration Zone!!!)
RESPIRATORY MEMBRANE
WALL of ALVEOLUS
- Type I [Allow Gas Diffusion]
- Type II [Secrete SURFACTANT]
- Macrophage
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