poole

Question 1

what is the primary function of the lung?

Answer 1

gas exchange

Question 2

what is critical for the maintenance of acid-base regulation within the body?

Answer 2

removal of CO2

Question 3

O2 and CO2 move between the air and blood by what?

Answer 3

diffusion (from high pressure to low pressure)

Question 4

the amount of gas that moves across a membrane such as the blood-gas interface in the lung is determined by what?

Answer 4

Fick’s Law

Question 5

the mammalian lung is designed to maximize ____ while minimizing ____.

Answer 5

maximize: surface area
minimize: thickness

Question 6

what part of the lung does gas-exchange occur?

Answer 6

respiratory zone

Question 7

airways that do not exchange gas are called?

Answer 7

conducting zone or dead space

Question 8

is the respiratory zone or conducting zone bigger?

Answer 8

respiratory zone

Question 9

where is the mucociliary tree confined to?

Answer 9

non-gas exchanging regions of the lung

Question 10

in pigs and cattle, the lung lobules are?

Answer 10

interconnected

Question 11

in the cat and dogs lungs, there is ?

Answer 11

profuse interconnectivity

Question 12

horse lungs are?

Answer 12

intermediate

Question 13

interconnectivity in the lungs facilitate ___ and ___ the consequences of airway obsruction

Answer 13

• collateral ventilation

- lessen

Question 14

the structure of the lung is supported by?

Answer 14

elastin and collagen

Question 15

at rest, each RBC spends how much time within the pulmonary capillary?

Answer 15

~0.75s

Question 16

what cells produce surfactant?

Answer 16

type II pneumocytes

Question 17

what cells roam the the alveoli engulfing tiny particles to be filtered upstream?

Answer 17

alveolar macrophage

Question 18

what is a structural cell that makes up the cell wall in the alveolus?

Answer 18

type I pneumocytes

Question 19

where is the greatest total airway cross-section area in the lung?

Answer 19

the respiratory zone of the lung