7.3

Question 1

tidal volume

Answer 1

volume of air that moves into and out of lungs

Question 2

what are the different ways that the volume of air drawn in and out of lungs can be a measured?

Answer 2

• peak flow meter-measures rate at which air can be expelled from lungs-
• vitalographs -better than peak flow meter but same concept
• spirometer - measures different aspects of lung volume or to investigate breathing patterns

Question 3

vital capacity

Answer 3

volume of air that can be breathed in by the strongest possible exhalation followed by the strongest possible inhalation

Question 4

inspiratory reserve volume

Answer 4

maximum volume of air you can breathe in over and above normal inhalation

Question 5

expiratory reserve volume

Answer 5

extra amount of air you can force out of your lungs over and above normal today volume of air you breathe out.

Question 6

residual volume

Answer 6

volume of air that is left in your lungs when you have exhaled as hard as possible. cannot be measured directly.

Question 7

how to calculate tidal volume?

Answer 7

breathing rate / ventilation rate

Question 8

how to calculate breathing rate?

Answer 8

ventilation rate /tidal volume

Question 9

how to calculation ventilation?

Answer 9

tidal volume x breathing rate

Question 10

total lung capacity?

Answer 10

sum of vital capacity and residual volume

Question 11

breathing rate

Answer 11

number of breaths taken per minute

Question 12

ventilation rate

Answer 12

total volume of air inhaled in one minute

Question 13

describe the relationship between tidal volume, breathing rate and oxygen uptake.

Answer 13

ring exercise, tidal volume increases as the depth of breathing increases and the rate of breathing increases too. This has the effect of taking more oxygen into the body and removing more carbon dioxide.

Question 14

what does soda lime do?

Answer 14

absorbs co2

Question 15

nose clip

Answer 15

ensure spirometer is a closed system, breathing air only.