Difference between revisions of "Alveoli"
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: The [[blood]] supply to the [[alveoli]] is very good to constantly supply of [[blood]] with little [[Oxygen]] and a lot of [[Carbon Dioxide]] keeping a high [[Concentration Gradient|concentration gradient]]. | : The [[blood]] supply to the [[alveoli]] is very good to constantly supply of [[blood]] with little [[Oxygen]] and a lot of [[Carbon Dioxide]] keeping a high [[Concentration Gradient|concentration gradient]]. | ||
: The walls of the [[alveoli]] are kept moist to allow gases to [[dissolve]] into to the fluid for gas exchange with the [[blood]]. | : The walls of the [[alveoli]] are kept moist to allow gases to [[dissolve]] into to the fluid for gas exchange with the [[blood]]. | ||
| + | ===About Alveoli=== | ||
| + | : The [[alveoli]] are where [[Oxygen]] enters the [[blood]] and [[Carbon Dioxide]] leaves the [[blood]]. | ||
| + | : There are thousands of [[alveoli]] in each [[lung]]. | ||
| + | : [[Alveoli]] are found at the end of [[bronchiole]]s. | ||
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| + | {| class="wikitable" | ||
| + | |- | ||
| + | |[[File:AlveolusGasExchange.png|center|400px]] | ||
| + | |- | ||
| + | | style="height:20px; width:400px; text-align:center;" |A [[diagram]] showing a single [[alveolus]] with the [[Oxygen]] going into the [[blood]] and [[Carbon Dioxide]] leaving the [[blood]]. | ||
| + | |} | ||
Revision as of 10:05, 6 June 2019
Contents
Key Stage 3
Meaning
Alveoli are small air sacs in the lungs which are specially adapted for gas exchange.
Adaptations of Alveoli
- The alveoli have thin walls to allow gas exchange to happen quickly.
- Alveoli are in groups to make a large surface area in the lung for gas exchange.
- The alveoli have a good blood supply to allow gas exchange with the blood.
- The walls of the alveoli are kept moist to allow gases to dissolve into to the fluid for gas exchange with the blood.
About Alveoli
- The alveoli are where Oxygen enters the blood and Carbon Dioxide leaves the blood.
- There are thousands of alveoli in each lung.
- Alveoli are found at the end of bronchioles.
 |
| A diagram showing a single alveolus with the Oxygen going into the blood and Carbon Dioxide leaving the blood. |
Key Stage 4
Meaning
Alveoli are small air sacs in the lungs which are specially adapted for gas exchange.
Adaptations of Alveoli
- The walls of the alveoli separating the air from the blood are very thin allowing gases to diffuse quickly.
- The blood supply to the alveoli is very good to constantly supply of blood with little Oxygen and a lot of Carbon Dioxide keeping a high concentration gradient.
- The walls of the alveoli are kept moist to allow gases to dissolve into to the fluid for gas exchange with the blood.
About Alveoli
- The alveoli are where Oxygen enters the blood and Carbon Dioxide leaves the blood.
- There are thousands of alveoli in each lung.
- Alveoli are found at the end of bronchioles.
|
| A diagram showing a single alveolus with the Oxygen going into the blood and Carbon Dioxide leaving the blood. |