Fish gill - Wikipedia
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).
Fish Gill: Types, Structure and Function
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 …
How Do Gills Work? - Ocean Conservancy
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.
How Do Gills Work? - American Oceans
Fish gills are composed of thin filaments that are covered in tiny projections called lamellae. The lamellae provide a large surface area for gas exchange. In addition, fish gills are rich in blood vessels, which helps to transport oxygen to the rest of the body.
Gills 101: The Magic Of How Fish Breathe - Earth Life
2020年3月16日 · Fish can breathe the water by swimming forwards and letting some of the passing water flow in through the mouth, across the gills, and then out. They can control the amount of blood flowing through their gills, increasing the amount of oxygen they take from the water if they are being more active.
Fish Gills - Basic Biology
2017年7月18日 · Fish Gills. Fish breathe through gills instead of lungs. Just like all other animals, fish need oxygen to survive. Because they live in water, they have evolved gills which enable them to remove dissolved oxygen from water. Most fish have four gills on both sides of their head.
Fish - Gills, Lungs, Swim Bladder | Britannica
2024年9月29日 · Fish - Gills, Lungs, Swim Bladder: Most fishes exchange dissolved oxygen and carbon dioxide in water using gills which lie behind and to the side of the mouth cavity. The circulatory system consists of the heart, arteries, capillaries, and veins.
How do fish breathe? - Discover Wildlife
Find out more about fish gills - the intricately designed respiratory organ that fulfills an essential function.
Blue in the Face: Breathing Underwater - U.S. National Park Service
2020年1月24日 · Thanks to the operculum, bony fish can actively swallow water and push it through their gills. For jawless fish, there are two common ways to take in the water they need to breathe. They have a specialized breathing tube called a nasopharyngeal duct, which leads to their gill pouches.
A FIRST LOOK AT HOW FISH GILLS WORK - The Company of …
2008年11月15日 · The Methods section presents a description of morphometric techniques developed by I. E. Gray 12 years earlier (Gray, 1954) and further refined by Hughes to measure various gill morphology parameters, including filament length, secondary lamellae spacing and …