Comparative anatomy of pectoral girdle and pectoral fin in Russian sturgeon and American paddlefish
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منابع مشابه
Pectoral fin and girdle development in the basal actinopterygians Polyodon spathula and Acipenser transmontanus.
The pectoral fins of Acipenseriformes possess endoskeletons with elements homologous to both the fin radials of teleosts and the limb bones of tetrapods. Here we present a study of pectoral fin development in the North American paddlefish, Polyodon spathula, and the white sturgeon, Acipenser transmontanus, which reveals that aspects of both teleost and tetrapod endoskeletal patterning mechanism...
متن کاملOrigin and Comparative Anatomy of the Pectoral Limb
(The Classic Article is 1950 by Lippincott Williams & Wilkins and is reprinted with permission from DePalma AF. Origin and comparative anatomy of the pectoral limb. In: DePalma AF. Surgery of the Shoulder. Philadelphia, PA: Lippincott Williams & Wilkins; 1950:1–14.) Richard A. Brand MD (&) Clinical Orthopaedics and Related Research, 1600 Spruce Street, Philadelphia, PA 19103, USA e-mail: dick.b...
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bones of the pectoral girdle skeleton in representatives of 48 genera in 41 families of eurypterygian fishes were studied. the structure and position of the pectoral girdle is relatively stable in eurypterygians. it consists of the extrascapula, posttemporal, supracleithrum, cleithrum, postcleithrum, scapula, coracoid, actinosts, and fin rays. an ectocoracoid is present in some gasterosteiforme...
متن کاملFlight capability and the pectoral girdle of Archaeopteryx
As the earliest birds known, the late Jurassic specimens of Archaeopteryx have been the object of great speculative interest. Ostrom'"' has argued that Archaeopteryx was a terrestrial, cursorial predator that represents a preflight stage in the origin of birds in which the forelimbs were used as nets to trap insects. So far, this has been challenged mainly on the grounds that such activity woul...
متن کاملGrowth in the larval zebrafish pectoral fin and trunk musculature.
After initial patterning, muscle in the trunk and fins of teleosts grows extensively. Here, we describe muscle growth in zebrafish, with emphasis on the pectoral fin musculature. In the trunk, slow muscle fibers differentiate first. In contrast, slow muscle does not appear in the pectoral fin until the beginning of the juvenile period. Mosaic hyperplasia contributes to trunk muscle growth, and ...
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ژورنال
عنوان ژورنال: Folia Morphologica
سال: 2016
ISSN: 1644-3284,0015-5659
DOI: 10.5603/fm.a2015.0093