Histo - Images Flashcards
Where in the respiratory tract would you find this type of epithelium? Type of epithelium?

Nasal cavity
PSCC
What is the function of the cells directly under the PSCC cells?

Basal cells - stem cells for ciliated and goblet cells
What is the blue-staining area? What does it contain?

Lamina propria
Blood vessels, lymphocytes and other immune cells, seromuocus glands
Where would you find this PSCC epithelium?

Nasal cavity
Name the dark pink, elongated cell and its function

Supporting cell
Provides metabolic and physical support to olfactory cells
Name the yellow elongated cells and their function

Olfactory cells
Basal processes collectively form olfactory nerve for odor transduction
Name the short dark pink cells and their function

Basal cells
Regenerate other cells
Name the outer layer and what it consists of

Adventitia/serosa
Connective tissue w/ or w/o mesothelial layer
Name the layer under the adventitia and what it consists of

Muscularis externa
Smooth muscle in inner circular layer and outer longitudinal layer
Name the layer under the muscularis externa and what it consists of

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?

Larynx
(notice transition from PSCC on left to simple squamous on right)
What is the yellowish material?

Hyaline cartilage forming C-shaped ring in trachea
What else is surrounding the tracheal lumen besides hyaline cartilage?

Trachealis muscle
What is the narrower lumen at the top of the slide?

Esophageal lumen
Where in the respiratory tract are we?

Trachea
(notice the hyaline cartilage and PSCC)
What is the orange arrow pointing to?

Basement membrane
What is the blue box encompassing? What cells are present?

Lamina propria
Lymphocytes
What is the red box encompassing? Red circle?

Submucosa
Seromucous gland
What is the green box encompassing?

Hyaline cartilage layer
Where in the respiratory tract are we?

Posterior tracheal wall
(notice thick trachealis muscle layer)

Where are we in the respiratory tract?

Trachea
(THICK BM and thick trachealis muscle layer)

Where in the respiratory tract are we?

Intrapulmonary bronchi
(cartilage now in plates)
Where in the respiratory tract are we?

Intrapulmonary bronchi
(Red circle = appearance of MUSCULARIS MUCOSA
Blue box = cartilage plate)























