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4 Cards in this Set
- Front
- Back
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Where does gaseous exchange occur in bony fish? |
Over the surface of gills with has 4 pairs of gill arches consisting of many gill filaments |
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What are gills protected by? |
The operculum |
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How does gas exchange work? |
1. Water enters through mouth and passes out through gills 2. Blood flows through lamellae in one direction and water flows over in opposite direction (counter current system) |
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What does lamellae contain? |
Blood capillaries and thin surface layer of cells to speed up diffusion |
