Alveoli

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  • Created by: Khadija
  • Created on: 20-02-20 12:31
Where is the alveoli?
In the lungs containing millions of little air sacs.
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What is the alveoli surrounded by?
A network of blood capillaries where gas exchange takes place.
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Where does the blood passing next to the alveoli return to?
The lungs from the rest of the body so it contains lots of carbon dioxide and little oxygen.
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How does the oxygen diffuse?
Diffuses out of the alveolous (high concentration) into the blood (low concentration).
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How does carbon dioxide diffuse?
Carbon dioxide diffuses out of the blood (high concentration) into the alveolus (low concentration) to be breathed out
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What happens when the blood reaches body cells?
Oxygen is released from the red blood cells (high concentration) diffuses into the body cells (low concentration). CO2 diffuses out of the body cells (high concentration) into blood (low concentration) & is carried back to the lungs.
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How do you calculate the breathing rate?
In breaths per minute
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How do you calculate breaths per minute?
Number of minutes ÷ number of minutes
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Other cards in this set

Card 2

Front

What is the alveoli surrounded by?

Back

A network of blood capillaries where gas exchange takes place.

Card 3

Front

Where does the blood passing next to the alveoli return to?

Back

Preview of the front of card 3

Card 4

Front

How does the oxygen diffuse?

Back

Preview of the front of card 4

Card 5

Front

How does carbon dioxide diffuse?

Back

Preview of the front of card 5
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