Zusammenfassung der Ressource
Frage 1
Frage
What is breathing rate?
Antworten
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The volume of air in each breath
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The maximum volume of air that can be breathed in or out
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How many breaths are taken per unit time
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The rate at which a person uses up oxygen
Frage 2
Frage
What features do bronchi have?
Frage 3
Frage
What features do the trachea have?
Frage 4
Frage
What features do alveoli have?
Frage 5
Frage
What happens during inspiration?
Antworten
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The intercostal and diaphragm muscles contract
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The ribcage moves upward and outwards and the diaphragm flattens
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The volume in the thorax increases
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The lung pressure decreases
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Air flows into the lungs
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The intercostal and diaphragm muscles relax
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The ribcage moves downwards and inwards and the diaphragm becomes curved
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The thorax volume decreases
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The air pressure increases
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Air is forced out of the lungs
Frage 6
Frage
Air always flows from areas of high pressure to areas of low pressure.
Frage 7
Frage
When using a spirometer, the total volume of gas in the chamber decreases over time.
Frage 8
Frage
What happens during expiration?
Antworten
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The intercostal and diaphragm muscles contract
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The ribcage moves upward and outwards and the diaphragm flattens
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The volume in the thorax increases
-
The lung pressure decreases
-
Air flows into the lungs
-
The intercostal and diaphragm muscles relax
-
The ribcage moves downwards and inwards and the diaphragm becomes curved
-
The thorax volume decreases
-
The air pressure increases
-
Air is forced out of the lungs