Histology

Question 1

What are the functions of the respiratory system?

Answer 1

1. Move air in and out of the lungs
2. Deliver oxygen
3. Remove carbon dioxide

Question 2

How is air conditioned in the respiratory system?

Answer 2

It is humidified, warmed and filtered

Question 3

Where is air conditioned in the respiratory system?

Answer 3

The conduction portion

Question 4

What is included in the conducting portion of the respiratory system?

Answer 4

The nasal cavities, nasopharynx, larynx, trachea, bronchi, bronchioles and terminal bronchioles

Question 5

What is included in the respiratory portion of the respiratory system?

Answer 5

The respiratory bronchioles, alveolar ducts, alveolar sacs and alveoli

Question 6

What is the function of the respiratory portion of the respiratory system?

Answer 6

Passive gas exchange between the atmosphere and the lungs

Question 7

What are the functional divisions of the respiratory system?

Answer 7

The conducting portion and the respiratory portion

Question 8

What are the 4 main layers of the respiratory system?

Answer 8

1. The respiratory mucosa
2. The submucosa
3. The cartilage and/or muscle layer
4. The adventitia

Question 9

What epithelium is characteristic of the nasal mucosa?

Answer 9

Pseudostratified columnar ciliated epithelium

Question 10

What are the predominant cell types in the respiratory epithelium?

Answer 10

1. Ciliated columnar cells
2. Goblet cells
3. Basal cells

Question 11

What is the function of clara cells

Answer 11

They produce surfactant

Question 12

What is the function of surfactant?

Answer 12

It maintains the inflation of the alveoli