Histology Quiz

Question 1

What kind of epithelium is this?

Answer 1

Respiratory Epithelium

Question 2

Answer 2

Blue Star: false vocal fold (it is below seromucous glands)

Yellow Star: true vocal fold (it is close to the vocalis muscle)

Black area: the vocalis muscle

Space between the stars: the laryngeal ventricle

Question 3

What is this?

Answer 3

Trachea!

Question 4

What is this?

Answer 4

Metaplasia of respiratory epithelium

Question 5

This is the lumen of what? What are the yellow lines?

Answer 5

Main stem bronchus in hila, yellow is smooth muscle

**you know its a main stem bronchus and not an intrapulmonary bronchus because of the LARGE irregular plates of cartilage, and the surrounding tissue is not alveolar**

Question 6

What is this? What is the dark purple in the lower left corner? What is the lighter purple?

Answer 6

Intrapulmonary bronchus

Dark purple is a lymph nodule, light purple is cartilage and the large washed out cells in it are chondrocytes.

Question 7

What cells are these?

Answer 7

Ciliated cell (yellow) and basal cell (red)

Question 8

Identify the layers

Answer 8

1: mucosa
2: submucosa
3: cartilage layer
4: adventitia

Question 9

What is this?

Answer 9

Terminal bronchiole

Question 10

What kind of cell is this?

Answer 10

Clara cell: protruberant apical surface with lots of vessicles to be secreted and SER to detoxify