Part 2

Question 1

What is between the visceral and parietal pleura that keeps the lung inflated against the chest wall?

Answer 1

Negative Pressure

Question 2

Negative pressure varies between?

Answer 2

-5 and -7.5 cm H20

Question 3

Alveolar pressure is sub atmospheric during?

Answer 3

Inspiration

Question 4

Alveolar pressure is supra-atmospheric during?

Answer 4

Expiration

Question 5

The difference between alveolar pressure and pleural pressure is?

Answer 5

Transpulmonary Pressure

Question 6

What does transpulmonary pressure measure?

Answer 6

Recoil tendency of lungs

Question 7

Transpulmonary pressure peaks at the end of?

Answer 7

Inspiration

Question 8

Change in volume divided by change in pressure is equal to?

Answer 8

Compliance of the lung

Question 9

At the onset of inspiration the pleural pressure changes at a faster rate than lung volume. This is known as?

Answer 9

Hysteresis

Question 10

It’s easier to inflate a saline filled lung than an air filled lung because?

Answer 10

Surface tension forces have been eliminated in the saline filled lung.

Question 11

The effect of the thoracic cage on the lung reduces compliance by about 1/2 around?

Answer 11

Functional Residual Capacity (at the end of normal inspiration)

Question 12

Compliance is greater reduced at?

Answer 12

High or Low Lung Volumes

Question 13

When we take a breath in what happens?

Answer 13

Airway resistance increases

Question 14

The greatest resistance to airflow is through the?

Answer 14

Nasal Passages