Lung defense mechanisms

Question 1

What are the components of mucus?

Answer 1

Water, glycoproteins (mucins).

Mucus traps particles and protects the underlying epithelium physically and contains anti microbials.

Question 2

What is the per-cilary fluid?

Answer 2

The sol layer, where the cilia beat Produced by clara cells and epithelium. It is regulated by active ion transport.
In disease, can be more viscous, have more mucins. Thus less PCF and a decrease in cilary function.

Question 3

What can be said about cough?`

Answer 3

Is effective to the 16th gen of airways, and a great intrathoracic pressure must be generated to do it.