Gas exchange- fish

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What are the gills supported by?
5/6 gill arches
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What are the gills protected by?
Opercular flaps
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Where does the gas exchange take place?
In the lamellae
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Why is the blood flow in the lamellae un-directional?
Because of the arrangement or afferent blood vessels (these take blood to the lamellae)
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What is the name of the blood vessels that take the blood away from the lamellae?
Efferent blood vessels
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How does the counter current between the blood and water help the exchange rate?
It maintains a high concentration gradient
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Why is the lamellae being thin beneficial?
Creates a short diffusion gradient
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Other cards in this set

Card 2

Front

What are the gills protected by?

Back

Opercular flaps

Card 3

Front

Where does the gas exchange take place?

Back

Preview of the front of card 3

Card 4

Front

Why is the blood flow in the lamellae un-directional?

Back

Preview of the front of card 4

Card 5

Front

What is the name of the blood vessels that take the blood away from the lamellae?

Back

Preview of the front of card 5
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