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  • Gill - Wikipedia
    Gills or gill-like organs, located in different parts of the body, are found in various groups of aquatic animals, including molluscs, crustaceans, xiphosurans, aquatic insects, polychaetes and most aquatic vertebrates (fish and amphibian tadpoles)
  • How Do Gills Work? | Function, Oxygen Uptake, Fish - Britannica
    Gills help aquatic animals breathe by allowing gases to move between water and blood Their feathery, branched structure is filled with superficial blood vessels, which gives them a large surface area for this exchange
  • How Do Gills Work? - American Oceans
    Gills are respiratory organs found in aquatic animals, including fish, sharks, lampreys, and hagfish They are responsible for extracting oxygen from water, which is then used to sustain the animal’s metabolism
  • Understanding Gills: Structure, Function, and Impact
    Gills consist of specialized tissue that facilitates gas exchange, primarily oxygen absorption from water and expulsion of carbon dioxide The main structural elements include filaments, lamellae, and a supporting framework that varies across species
  • What Is a Gill and How Does It Work? - Biology Insights
    Gills are specialized organs that allow many aquatic animals to extract dissolved oxygen from water and release carbon dioxide They serve as the primary means of respiration for a vast array of organisms
  • Fish gill - Wikipedia
    Fish gills are organs that allow fish to breathe underwater Most fish exchange gases like oxygen and carbon dioxide using gills on both sides of the pharynx (throat) Gills possess tissues resembling short threads, referred to as gill filaments or lamellae
  • Fish - Gills, Lungs, Swim Bladder | Britannica
    The gills lie behind and to the side of the mouth cavity and consist of fleshy filaments supported by the gill arches and filled with blood vessels, which give gills a bright red colour
  • Gill | Fish, Aquatic, Oxygen | Britannica
    Gills help aquatic animals breathe by allowing gases to move between water and blood Their feathery, branched structure is filled with superficial blood vessels, which gives them a large surface area for this exchange
  • Respiratory system - Gills, Invertebrates, Breathing | Britannica
    Many invertebrates use gills as a major means of gas exchange; a few, such as the pulmonate land snail, use lungs Almost any thin-walled extension of the body surface that comes in contact with the environmental medium and across which gas exchange occurs can be viewed as a gill





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