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Flashcards in Respiratory system Deck (8)
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1

What are the main layers of the tracheal walls?

1. Epithelium

2. lamina propria

3. Submucosa

4. Cartilage (C-shaped hyaline)

 

2

What are the components of respiratory epithelium in trachea?

- Pseudostratified, columnar, ciliated epithelium

- Goblet cells

3

What is the lamina propria?

Thin layer of connective tissue below respiratory epithelium that warms air.

4

What types of glands are found in the submucosa of the trachea?

Sero-mucous glands

5

What are the differences between the trachea and bronchi?

- Epithelium less tall in bronchi.

- Submucosa contains fewer seromucous glands.

- Cartilage is plated, not C-shaped.

- Presence of smooth muscle layer between the lamina propria and the submucosa.

6

What is the main difference between bronchioles and bronchi?

- Bronchioles don't have cartilage in their walls.

- Bronchiolar epithelium is simple, columnar ciliated.

7

What are the different types of cells in alveoli?

1. Pneumocyte type I cells (40% cell population, 90% SA)

2. Pneumocyte type II cells (60% cell population, 10% SA)

8

What is the function of pnemocyte type II cells?

Produces surfactant