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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.
Like humans, fish need oxygen to survive, so how do fish breathe underwater? Oxygen helps release the energy that powers our bodies from the sugary chemical glucose in a process called...
The respiratory system of fishes is a highly specialized adaptation that allows these aquatic animals to extract dissolved oxygen from water, an essential process for their survival. This system comprises various anatomical structures that work together to facilitate efficient gas exchange.
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.
Respiration in fish or in any entity living in the water differs from that of human beings. Organisms such as fish, living in water, need oxygen to breathe for cells to sustain. Fish possess specialized structures to carry out the respiratory function, helping them inhale oxygen dissolved in water.
3D animation explaining how fish use their gills to respirate, and how the counter-current approach to optimise blood oxygenation gets established.
Fish respiratory systems are crucial for their survival and understanding how they work is essential for any aquarium enthusiast. In this article, we will delve into the intricacies of fish respiration, exploring their remarkable gills and the fascinating mechanisms that allow them to extract oxygen from water.
In this video Science Steve and Lauren demonstrate fish gills and explain how fish obtain oxygen from the water through the gills.
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.
The gills are feathery organs that form the respiratory system in fish, participate in osmo-regulation (regulation of mineral salts) and help to maintain a stable pH. The gills are very delicate but they are well protected thanks to gill covers.