Questão 1
Questão
What is the average total lung capacity?
Responda
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5 litres
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4.5 litres
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6 litres
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4 litres
Questão 2
Questão
Normal breathing, also known as the [blank_start]tidal[blank_end] volume, has an average volume of [blank_start]300[blank_end]-500 cm3.
Questão 3
Questão
Both maximum inspiration and maximum expiration has an average volume of 3.5 dm3.
Questão 4
Questão
Residual air, which is not [blank_start]removed[blank_end] so to keep lungs [blank_start]inflated[blank_end], has an average volume of [blank_start]1.5[blank_end]dm3.
Questão 5
Questão
A spirometer measure oxygen in hameolobin.
Questão 6
Questão
Spirometer:
If a person breathes [blank_start]in[blank_end], removes air from the box, the lid will drop causing the pen to drop. This is [blank_start]in[blank_end]halation.
When they breathe out, the lid will [blank_start]rise[blank_end] and pen rises. This is [blank_start]ex[blank_end]halation.
Over time, the chamber air content will [blank_start]fall[blank_end] as the CO2 is absorbed by [blank_start]soda[blank_end] lime and oxygen is removed. Then O2 consumption can be calculated.
The graph line will go [blank_start]down[blank_end] as oxygen decreasesin the chamber. One curved "u-shape" is one [blank_start]breath[blank_end], showing inhalation and exhalation.
People with a[blank_start]sthm[blank_end]a or COPD (chronic obstructive pulmonary disease) should not take part.
Responda
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in
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in
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rise
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ex
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fall
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soda
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down
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breath
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sthm
Questão 7
Questão
What is added to a spirometer to absorb carbon dioxide from the air as you exhale?
Responda
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iodine
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soda lime
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sodium carbonate
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cyanide
Questão 8
Questão
Which gas is absorbed into the blood stream from the air that you inhale?
Responda
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carbon dioxide
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nitrogen
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oxygen
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water vapour
Questão 9
Questão
What happens to the total volume of gas in the chamber of a spirometer as you inhale and exhale?
Responda
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it decreases
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it increases
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it doesn't change
Questão 10
Questão
Why does the total volume of gas in the chamber of a spirometer decrease as you inhale and exhale?
Responda
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CO2 absorbed by soda lime and o2 absorbed by person
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CO2 and O2 absorbed by soda lime
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CO2 absorbed by person and O2 absorbed by soda lime
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Leaks in the gas chamber
Questão 11
Questão
What happens to oxygen consumption as a result of excercise? Can you explain why?
Responda
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O2 consumption decreases as muscles respire less and require less O2.
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O2 consumption remains the same as muscles have reserves of O2.
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O2 comsumption increases as muscles respire more and require more O2.
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O2 consumption increases as muscles respire less and the brain requires more O2.