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Flashcards in poole Deck (19):
1

what is the primary function of the lung?

gas exchange

2

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

removal of CO2

3

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

diffusion (from high pressure to low pressure)

4

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

Fick's Law

5

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

maximize: surface area
minimize: thickness

6

what part of the lung does gas-exchange occur?

respiratory zone

7

airways that do not exchange gas are called?

conducting zone or dead space

8

is the respiratory zone or conducting zone bigger?

respiratory zone

9

where is the mucociliary tree confined to?

non-gas exchanging regions of the lung

10

in pigs and cattle, the lung lobules are?

interconnected

11

in the cat and dogs lungs, there is ?

profuse interconnectivity

12

horse lungs are?

intermediate

13

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

-collateral ventilation
-lessen

14

the structure of the lung is supported by?

elastin and collagen

15

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

~0.75s

16

what cells produce surfactant?

type II pneumocytes

17

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

alveolar macrophage

18

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

type I pneumocytes

19

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

the respiratory zone of the lung