Histo - Images Flashcards
Where in the respiratory tract would you find this type of epithelium? Type of epithelium?
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Nasal cavity
PSCC
What is the function of the cells directly under the PSCC cells?
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Basal cells - stem cells for ciliated and goblet cells
What is the blue-staining area? What does it contain?
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Lamina propria
Blood vessels, lymphocytes and other immune cells, seromuocus glands
Where would you find this PSCC epithelium?
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Nasal cavity
Name the dark pink, elongated cell and its function
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Supporting cell
Provides metabolic and physical support to olfactory cells
Name the yellow elongated cells and their function
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Olfactory cells
Basal processes collectively form olfactory nerve for odor transduction
Name the short dark pink cells and their function
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Basal cells
Regenerate other cells
Name the outer layer and what it consists of
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Adventitia/serosa
Connective tissue w/ or w/o mesothelial layer
Name the layer under the adventitia and what it consists of
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Muscularis externa
Smooth muscle in inner circular layer and outer longitudinal layer
Name the layer under the muscularis externa and what it consists of
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Submucosa
Connective tissue
Name the layer under the submucosa (duh!) and what it consists of
Mucosa
Epithelium, lamina propria (c.t.), muscularis mucosa
Where are we in the respiratory tract?
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Larynx
(notice transition from PSCC on left to simple squamous on right)
What is the yellowish material?
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Hyaline cartilage forming C-shaped ring in trachea
What else is surrounding the tracheal lumen besides hyaline cartilage?
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Trachealis muscle
What is the narrower lumen at the top of the slide?
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Esophageal lumen
Where in the respiratory tract are we?
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Trachea
(notice the hyaline cartilage and PSCC)
What is the orange arrow pointing to?
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Basement membrane
What is the blue box encompassing? What cells are present?
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Lamina propria
Lymphocytes