Fish gill - Wikipedia
In bony fish, the gills lie in a branchial chamber covered by a bony operculum (branchia is an Ancient Greek word for gills). The great majority of bony fish species have five pairs of gills, although a few have lost some over the course of evolution.
Fish Gill: Types, Structure And Function - Fish Article
Jan 2, 2023 · 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 …
Fish Gills - Basic Biology
Jul 18, 2017 · 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.
Structure of Gills in Fishes (With Diagram) - Your Article Library
In this article we will discuss about the structure of gills in fishes. Gill Slits: There are six or seven pairs of gills in cartilaginous fishes while four pairs in bony fishes due to the loss of spiracle (Fig. 5.1 a & b). Gill slits of bony fishes are covered by operculum while operculum is absent in cartilaginous fishes.
Structure and Function - Fish | manoa.hawaii.edu…
The Operculum is the bony plate that covers fishes’ gills. In chimeras and bony fishes, the operculum covers the posterior end of the head, which protects the gill openings. The bony operculum often has another bony flap, called the preoperculum, overlaying it (Fig. 4.30). Some fishes also have a strong spine, or spines, that project back ...
Gill - Wikipedia
In bony fish, the gills lie in a branchial chamber covered by a bony operculum. The great majority of bony fish species have five pairs of gills, although a few have lost some over the course of evolution.
Osteichthyes - Wikipedia
All bony fish possess gills. For the majority this is their sole or main means of respiration. Lungfish and other osteichthyan species are capable of respiration through lungs or vascularized swim bladders. Other species can respire through their skin, intestines, and/or stomach. [18]
Blue in the Face: Breathing Underwater - U.S. National Park Service
Jan 24, 2020 · 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 …
Fish Gills - Structure, Breathing, Functions and FAQs - Vedantu
There are bony projections on the fish's gill arches called "gill rakers" that help them to feed. These projections are positioned forward and inward and vary in shape and number according to the fish's diet. Learn the Fish Gills Histology.
Gills: The Underwater Breathing Organs - SuchScience
Jul 11, 2023 · Variations among Bony Fishes. Bony fish have a different set-up. They have gills covered by a bony plate called the operculum. This plate protects the gills and helps control water flow. Most bony fish use a “pump and gulp” method to breathe. They open their mouths to take in water. Then they close their mouths and push the water over their ...
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