2. The Respiratory System (Summary)

Question 1

Pulmonary surfactant:

Answer 1

[1]
Prevents alveolar collapse

[2]
Reduces alveolar surface tension

[3]
Increases lung compliance

[4]
Is secreted by type II alveolar cells

Question 2

The smallest airways in the conducting zone are:

Answer 2

Terminal bronchioles

Question 3

What are the following functions of the conducting zone of the respiratory system:

Answer 3

1. Humidifying air
2. Warming air
3. Mucus secretion
4. Filtration

Question 4

What is the component of pulmonary gas exchange?

Answer 4

Diffusion of N2 from alveoli to blood

Question 5

What occurs in the conducting zone:

Answer 5

[1]
Filtration of particles from inspired air.

[2]
Filtration of pathogens from inspired air

[3]
Humidification of inspired air

Question 6

Surfactant is produced by ____ __ ________ _____ and acts to ________ alveolar surface tension.

Answer 6

Surfactant is produced by Type II alveolar cells and acts to decease alveolar surface tension.