AS Biology Breathing in bony fish OCR A Chapter 74

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The breathing mechanism in bony fish is similar to that of mammals - it relies on the changing of cavity volume to change the pressure, resulting in a flow of air or water into or out of the body. Here in bony fish, there are two cavities to consider: buccal cavity (mouth) and opercular cavity (between gills and opercular valves). In this video we will go through how the cavities' volumes and pressures change throughout fish breathing. • Please like, share and subscribe for more content and comment below to let me know what you think! :) • Facebook: BioRach - A-level Biology Online •   / biorachproject   • Twitter: @BioRachProject • https://twitter.com/BioRachProject?la... • Background music: • You like it by Vibe Tracks

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