Anatomy

Question 1

Describe the cell structure / histology of the bronchi?

Answer 1

• Pseudostratified columnar epithleium, interspersed w. goblet cells
• Cartilage (Complete ring shaped at level of primary bronchi)

Question 2

What do the bronchi have that the bronchioles do not?

Answer 2

Cartilage and glands

Question 3

At what level do the cells go from columnar to cuboidal?

Answer 3

Proximal bronchioles - columnar

Terminal bronchioles - cuboidal

Question 4

At what level does the mucous turn to serous fluid?

Answer 4

Proximal to terminal bronchioles

Question 5

What do club cells secrete?

Answer 5

Glycosaminoglycans

Question 6

Where can alveolar macrophages be found?

Answer 6

• Respiratory bronchioles

- Alveoli

Question 7

When do the submucosal mucous and serous glands dissapear?

Answer 7

From bronchi to bronchioles

Question 8

When do the goblet cells dissapear?

Answer 8

Proximal -> Terminal bronchioles

Question 9

Where in the respiratory tract do cilia disappear?

Answer 9

They are present in the respiratory tract all the way to the level of the respiratory bronchioles
- Not present in the alveoli