Blood and respiration, prof questions

Question 1

Compliance in alveoli without surfactant is _______ (less/more) than compliance in alveoli with surfactant

Answer 1

LESS

- Compliance= ability to expand

Question 2

At the end of inspiration, lung volume is ____ (max or min)

Answer 2

Max

Question 3

At the end of expiration, intra-alveolar pressure is ____(max or min)

Answer 3

Max!

Question 4

Velocity is greatest in the:

a. Pharynx
b. Larynx
c. Trachea
d. bronchi

Answer 4

c. Trachea, because it has the highest circumferance

Question 5

Lung compliance deacreases as people age. If nothing else changes, loos of compliance means _____:

a. The work of breathing increases
b. the lungs are easier to inflate
c. lung elastence decreases
d. airway resistance during inspiration increases

Answer 5

a. The work of breathing increases

could also be c, but a kind of implies c, so a is the best answer…

Question 6

At what point in a respiratory cycle is intrapleural pressure the greatest?

Answer 6

At the end of expiration

Question 7

The ciliated epithelium of the trachea and bronchi help…

Answer 7

Move mucus to the pharynx

Question 8

Air passes through :

what tubes, in order…

Answer 8

1. Pharynx
2. Larynx
3. Trachea