7.3 Measurig The Process

Question 1

How do you measure breathing ?

Answer 1

Using an spirometer

Question 2

What does vital volume means?

Answer 2

The volume of air in each breath

Question 3

What does vital capacity mean?

Answer 3

The maximum volume of air that can be breathed in or out

Question 4

What does breathing rate means ?

Answer 4

How many breaths are taken ( usually in a min )

Question 5

What does oxygen consumption or oxygen uptake ?

Answer 5

The rate at which organisms uses up oxygen

Question 6

How does an spirometer work ?

Answer 6

• person breathes through a tube connected to the oxygen chamber .
• as the person breathes in and out , the lid of the chamber moves up and down .
• recorded by the pen attached to the lid
• this writes on a rotating drum , creating a spirometer trace .
• The soda lime attached to the tube where person is breathing out absorbs the carbon dioxide .

Question 7

Units for tidal volume , and how to calculate

Answer 7

• dm^3
• the height of one breath

Question 8

Units for vital capacity , how ro calculate

Answer 8

• dm^3
• the height of max and min breathing

Question 9

Units for oxygen consumption , and how to calculate

Answer 9

• dm^3/min
• taking the average slope of the trace