Where in the respiratory system does gas exchange take place?
Alveoli
Trachea
Bronchioles
Which of the following contracts to cause inhalation of breath?
Lung
Diaphragm
Bronchus
Where would you find the intercostal muscles?
In the lung
Below the diaphragm
Between the ribs
What percentage of the air breathed out is oxygen?
21%
18%
16%
Which of these gases can the protein haemoglobin carry?
Ammonia and methane
Nitrogen and hydrogen sulphide
Oxygen and carbon dioxide
Which term is used to describe the movement of gases from an area of high concentration to an area of low concentration?
Contraction
Diffusion
Evaporation
Which lung volume can be defined as "the amount of air breathed in with each normal breath"?
Vital capacity
Total lung capacity
Tidal volume
Which gas is produced by the muscles during exercise as a waste product that needs to be transported and removed?
Oxygen
Carbon dioxide
Lactic acid
For the average adult, what measurement would we expect for total lung capacity?
1 litre
6 litres
10 litres
During the first ten minutes of a hockey match, what would you expect to the tidal volume of a midfielder to do?
Remain constant
Decrease
Increase