This card describes the respiratory system of bony fish, including their gills, opercula, and the processes used to maintain a continuous flow of water over the gills for efficient gas exchange.
Tato karta popisuje dýchací systém kostnatých ryb, včetně jejich žaber, víček (opercula) a procesů pro zajištění stálého proudění vody přes žábry pro efektivní výměnu plynů.
| Front | Bony fish ventilatory system and gills 3.1.1(f) |
|---|---|
| Back | - bony fish has high O2 demand, low SA:V and have scaly cover (doesn’t allow gas exchange) so can’t rely on diffusion - ventilatory system adapted to take O2 and release CO2 by maintaining water flow in 1 direction over the gills (organ) - gills have high SA, good blood supply and thin layers, contained in gill cavity and covered by protective operculum (bony flap), which maintains flow of water Over gills (gills make up gaseous exchange surface of fish) |
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