Wk 8 - LE 15: Respiratory (function and anatomy)

Question 1

Gas exchange is achieved by …?

Answer 1

Ventilating alveoli

Question 2

Lungs have an immune feature via…?

Answer 2

epithelial secretions, sneezing, filters air, coughing.

Question 3

Functions of lungs (4)?

Answer 3

1) gas exchange
2) immune function
3) metabolic/hormonal functions
4) speech

Question 4

The process of bringing air in and out the lungs is called…

Answer 4

Ventilation

Question 5

Blood flowing is called…?

Answer 5

Perfusion

Question 6

Gas _____ occurs at the alveolar-capillary interface

Answer 6

diffusion

Question 7

The ________ and _____ of the interface affects diffusion

Answer 7

area and thickness

Question 8

minute ventilation is…?

Answer 8

The amount of air inspired or expired in one minute

Question 9

Average minute ventilation at rest is…?

Answer 9

8-10 L/min

Question 10

Maximum rates of ventilation can exceed _____ L/min in large endurance athletes

Answer 10

200 L /min

Question 11

Alveolar ventilation and perfusion(i.e. CO) _____ during exercise

Answer 11

rise

Question 12

The pleural cavity reduces ______

Answer 12

friction

Question 13

Boyle’s law is…?

Answer 13

The pressure with a container is inversely proportional to the volume (small volume = high pressure vice versa)

Question 14

If lungs expand, pressure within them will___

Answer 14

fall

Question 15

Inspiration is _____

Answer 15

active

Question 16

Inspiration involves _____ muscles which increase the strength of inspiration

Answer 16

accessory

Question 17

Ventilation can be increased from ___ to ____ L/min(or more) during exercise

Answer 17

10 - 100 L/min