Anatomy and Terms

Fish can be broken down into six distinct sections which are fins, skin, vertebrae, jaw, organs, and reproductive system. So, I will endeavour to give as much information as I can and will be updating this page for awhile. Let’s start with the fins.


Fins
The first distinctive feature of a fish are the fins. These are made up of bony spines which protude from the fishes body and are joined together in a webbed fashion and covered with skin or appear as a flipper.

The purpose of the fins are to aid in the ability of a fish to swim. They can also be used for gliding or crawling.
The position of each fin has a different purpose whether it be to move forward, turn or stay upright.

haybaywalleye Anatomy and Terms
Here are the labels and description for these fins.

Abdominal Pelvics: Pelvic fins located on the abdomen far behind the pectoral fins; pelvic bones do not attach to pectoral girdle.
Accessory Pelvic Appendage: A tapered fleshy lobe above the base of the pelvic fin.
Adipose fin : A small fleshy fin with no rays, located between the dorsal and caudal fins.
Anal Fin: The fin located on the ventral median line and behind the anus.
Caudal Fin: Simply, the tail fin.
Dorsal Fin: The fins located on the back of fish and in front of the adipose fin, if it is present. A fish can have up to three of them. These dorsal fins serve to protect the fish against rolling, and assists in sudden turns and stops.
Jugular Pelvics: Pelvic fins in front of the pectoral fins.
Pectoral Fins: The anterior(front) paired fins, attached to pectoral (shoulder) girdle.
Pelvic Fins: Posterior paired fins, located in the abdominal position or towards the rear.


Comments

Anatomy and Terms — 1 Comment

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