Histology: Respiratory System Flashcards
1
Q
What are the layers of the trachea?
A
- Mucosa
- Submucosa
- Hyaline Cartilage - C-shaped
- Adventitia
2
Q
What types of cells are found in the tracheal mucosa?
A
Ciliated pseudostratified columnar epithelium
3
Q
Which of the bronchi is larger?
A
Right is wider and more vertical than the left
4
Q
What are the layers of the primary bronchi?
A
Similar to trachea:
- Mucosa
- Submucosa
- Hyaline Cartilage
- Adventitia
5
Q
What are the layers of the secondary and tertiary bronchi?
A
- Mucosa
- Submucosa
- Hyaline Cartilage - cartilage plates
- Adventitia
6
Q
What are the layers of the bronchioles?
A
- Mucosa - Clara cells with no cilia which replace the goblet cells
- Smooth Muscle
- Adventitia
7
Q
What is missing in the bronchioles that is in the bronchi?
A
No cartilage
8
Q
What are dust cells?
A
Alveolar Macrophages
9
Q
Which area of the bronchus is predominantly effected by asthma?
A
Submucosa
10
Q
Function of Clara Cells
A
This cell secretes glycosaminoglycans to protect the bronchiole lining.
11
Q
Function of Goblet Cells
A
This cell secretes gel forming mucins, which are the major component of mucus.
