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Respiratory System Laboratory

Respiratory System Laboratory. S.K. Kim. #124 Nasal Mucosa (Ep. + Lamina propria). Nasal septum. Nasal mucosa respiratory epithelium sero-mucous glands dilated venules and veins. Concha(e). Middle concha. Inferior concha. Nasal septum. (hyaline cartilage).

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Respiratory System Laboratory

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  1. Respiratory System Laboratory S.K. Kim

  2. #124 Nasal Mucosa (Ep. + Lamina propria) Nasal septum Nasal mucosa respiratory epithelium sero-mucous glands dilated venules and veins Concha(e) Middle concha Inferior concha Nasal septum (hyaline cartilage)

  3. #124 Olfactory Mucosa ? (monkey) # 124

  4. Slide 124 - Olfactory Epithelium • Thicker epithelium compared to respiratory epithelium • sustentacular cells* • ciliated olfactory cells* • basal (stem) cells* • NO goblet cells 2. SEROUS (Bowman’s) glands (G) and olfactory nerve fibers (N) in lamina propria N N G *note, can’t tell these cell types apart in routine H&E sections

  5. Olfactory mucosa Throughout the nasal cavityRespiratory epithelium with goblet cells.Sero-mucous glands in the lamina propria. Dilated venules and veins. Nasal mucosa Limited to a small area on the roof.Taller epithelium with no goblet cells (Only) serous glands (Bowman’s) in the lamina propria. Dilated venules and veins. Bowman’s gland Olfactory nerve fibers

  6. 115N (H&E)Sagital section of the palate Rotate 180o Developing tooth Nasal cavity Upper lip Oral cavity palatal and maxillary bone formation by intramembranous ossification Gingiva (gum)

  7. Nasal cavity, Pharynx and Larynx Nasal cavity (septum) Nasopharynx chonchae Oropharynx Epiglottis Laryngopharynx Larynx Esophagus Trachea Posterior view

  8. Gray’s p.956 #125-2 Larynx Thyroid cartilage Laryngeal ventricle Clemente pl. 562

  9. #125-2 Larynx Vestibular fold (false vocal fold) (true) Vocal fold

  10. #125-2 Larynx Stratified squamous epithelium, non-keratining Respiratory epithelium

  11. #126 Trachea Esophagus trachea Trachealis muscle esophagus

  12. #127 Trachealis Muscle (smooth)

  13. #130-1 Lung 1? Bronchus 2? Pulmonary artery

  14. #130-1 Lung Pulmonary artery Close to bronchial trees relatively thin wall (media) elastic laminae relatively wide lumen

  15. #130-1 Lung 5? 3? 4?

  16. #130-1 Lung 5. Alveolar duct 3. Terminal bronchiole 4. Pulmonary artery

  17. #130-1 Lung Terminal bronchiole Ciliated and non-ciliated (Clara) cells No goblet cells Prominent sm. M.

  18. #132Lung 8? P.A. 7? Respiratory bronchiole 6? Terminal bronchiole Low cells alveolar pocketing Knobs of sm. muscle (arrows)

  19. Terminal and Respiratory Bronchioles PA RBr TBr AD

  20. #129 Lung Alveolar sac Alveolar duct 9? 10? alveoli

  21. #130-1 Lung 10? 12? Type I Pneumocyte Macrophage 11? Type II Pneumocyte (surfactant)

  22. #130-1 Lung 14? 15? Bronchial vein Bronchial artery Only in the wall of large bronchi. Ordinary arteries with relatively thick media. Bronchial cartilage

  23. #129 Lung ? ? ?

  24. #129 Lung T. Br. R. Br. A. duct

  25. #130-1 Lung Away from bronchial trees thin wall Pulmonary vein 13?

  26. #130-2 Lung Pulmonary vein

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