Fish gills are organs that allow fish to breathe underwater. Most fish exchange gases like oxygen and carbon dioxide using gills that are protected under gill covers (operculum) on both sides of the pharynx (throat).

2023年1月2日 · Fish gills are crucial respiratory organs that enable fish to breathe underwater by extracting oxygen dissolved in water and eliminating carbon dioxide from their bodies. Typically situated on each side of the fish’s head, these gills are …

Gills or gill-like organs, located in different parts of the body, are found in various groups of aquatic animals, including mollusks, crustaceans, insects, fish, and amphibians. Semiterrestrial marine animals such as crabs and mudskippers have gill chambers in which they store water, enabling them to use the dissolved oxygen when they are on land.

2011年9月7日 · Today I found out how fish gills work. These fantastic little organs allow the fish to absorb oxygen from the water and use it for energy. Functionally, gills are not that dissimilar to the lungs in humans and other mammals.

2020年1月17日 · Gills are branching organs located on the side of fish heads that have many, many small blood vessels called capillaries. As the fish opens its mouth, water runs over the gills, and blood in the capillaries picks up oxygen that’s dissolved in the water.

2017年7月18日 · Most fish have four gills on both sides of their head. Sharks and other more primitive fish may have five or more gill slits. Each gill is supported by a gill arch – a bony structure that is oriented vertically on the side of a fish, just behind its head.

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. Gills are a specialized adaptation that has evolved in response to the unique challenges of living in an aquatic environment.

gill, in biology, type of respiratory organ found in many aquatic animals, including a number of worms, nearly all mollusks and crustaceans, some insect larvae, all fishes, and a few amphibians.

Fish gills are branching organs on the side of fish heads. They have a large number of small blood vessels called capillaries. Afterwards, the oxygen is delivered by the blood that runs through the fish's body, similar to how humans consume oxygen.

The fish gill is a remarkable organ, with design fundamentals shared by all jawed fishes, including gill arches bearing gill filaments, which in turn, support lamellae that act as the primary exchange site.