Lung microanatomy

Question 1

What is another name for secondary bronchi and where do they go?

Answer 1

Lobar bronchi

They go to the 5 lobes of the lungs

Question 2

How many segments do the bronchi feed in each lung?

Answer 2

10 in the right lung

8 in the left lung

Question 3

What do terminal bronchioles attach to?

Answer 3

respiratory bronchioles

Question 4

what is the significance of segmentation in the lungs? (i.e. why are they important?)

Answer 4

because if there is disease in one segment it can be removed

Question 5

Where are mesothelial cells located?

Answer 5

both sides of the pleural cavity (visceral and parietal)

Question 6

What are the layers from most superficial to deep in the airways?

Answer 6

Epithelial cell/goblet cell, basal cells, basal lamina, lamina propria, smooth muscles (bronchiole), submucosa, hyaline cartilage (trachea), adventitia

Question 7

When do club cells appear and what is their function?

Answer 7

They appear as you get closer to the terminal bronchioles

Produce mucous