Get a handful labeled fish diagrams to assist your study about fish anatomy. These anatomy diagrams are provided to guide you in studying the structure of the animal. These diagrams include some organs and can give you some detailed information about the structures of a fish. The diagrams are provided in the following images.
The fish diagram above shows the illustration of basic fish anatomy using the anatomy of a largemouth bass. The head of the fish has its mouth, nostrils and gill cover. The gills (found under the gill covers) allow the fish to breath. As water moves over the surface of the gills, oxygen is absorbed – like lungs in land creatures. Scales protect the fish from its environment. They overlap like shingles on a roof so that the skin of the fish is not exposed. The lateral line is how the fish “hears”. It is sensitive to pressure, vibration, movement and sound and lets the fish know what is in the water around them. The Fins help the fish swim. The large muscles of the body actually do most of the work, but the fins help with balance and turning. Gills allow a fish to breathe underwater. Take a look at the other fish diagrams below.
Fins are appendages used by the fish to maintain its position, move, steer and stop. They are either single fins along the centerline of the fish, such as the dorsal (back) fins, caudal (tail) fin and anal fin, or paired fins, which include the pectoral (chest) and pelvic (hip) fins. The fins are used for movement, stability, nest-building, spawning, and as tactile organs. Fins can be single or paired. Many aquarium fish seen in the hobby have long, drawn out fins, which have been developed through selective breeding. In nature, these fins are not found.
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