abdominal scute

Scute that is a bony plate that forms in the midline of ventral body margin between pectoral girdle and anal fin. Abdominal scutes may be present both anterior to and posterior to the pelvic girdle and fin.

유형 Organ
상위 구조물 fish scute

자주 묻는 질문

What is an abdominal scute?
An abdominal scute is a bony plate that forms in the midline of the ventral (belly-side) body margin in certain fishes. These bony scales are positioned between the pectoral girdle (chest) and the anal fin, and may also extend anterior to and posterior to the pelvic girdle.
Where are abdominal scutes located?
Abdominal scutes are located along the ventral midline of the body in fishes that possess them. They form a row of bony plates from the chest region to the area near the anal fin, essentially creating a protective keel along the belly.
What is the function of abdominal scutes?
Abdominal scutes are thought to provide structural reinforcement and protection to the ventral surface of fishes. They may also reduce predatory damage to the belly and contribute to the hydrodynamic shape of the fish.
What conditions can affect abdominal scutes?
Developmental abnormalities or nutritional deficiencies in the fishes that bear them can affect scute formation. Research on scute patterning and development is primarily of interest in comparative anatomy and evolutionary biology rather than clinical medicine.
How are abdominal scutes different from regular scales?
Unlike typical fish scales, which are thin, flexible, and overlapping, abdominal scutes are more rigid bony plates positioned precisely along the midline. They are structurally distinct, often keeled, and represent a specialized modification of the dermal skeleton.

관련 구조물

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Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.