File:Scallop Diagram2.svg
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Summary
DescriptionScallop Diagram2.svg |
English: Anatomical diagram of a giant scallop. Colors are close to those in an actual animal (digestive gland is black; adductor muscle is white; female gonad is orange, nerves are in yellow, etc.) though shown with greater than natural contrast for emphasis. Not shown are the left gill, the veins on the left side of the body, and the left shell or "valve". The hinge line corresponds to the animal's dorsal side, though when living it usually rests "sideways", on its right. The giant scallop is equilateral (i.e., symmetrical anterior-to-posterior) and very nearly equivalved (i.e., its left and right valves are close to the same size and shape), though this is not true of all or even most members of the class pectinidae.
Features to note: the nervous system is centered around the visceral ganglia which constitute a kind of molluscan "brain"; the head-to-tail longitudinal axis reaches from the anterior ear to the middle of the adductor muscle, making only a very small portion of the animal morphologically the "front" and the rest corresponding to its "back"; the final loop of the intestine goes directly through the ventricle of the heart before it reaches its u-shaped terminus. Français : Coupe anatomique d'un pétoncle géant Placopecten magellanicus (espèce de pétoncle qui peut mesurer jusqu’à 21 cm). Les couleurs du schéma sont proches de celles d'un animal réel (glande digestive noire ; muscle adducteur blanc ; gonade femelle orange ; nerfs en jaune, etc.) mais le contraste des couleurs est augmenté pour rendre ces organes plus visibles. Ne sont pas présentés les branchies de gauche, le système veineux du côté gauche et la coquille gauche ou "valve". La ligne d'articulation correspond à la face dorsale de l'animal, mais l’animal en vie repose habituellement "latéralement", sur sa droite. L’organisation corporelle du pétoncle géant est équilatérale (i.e. symétrique antérieure à postérieure) et ses valves sont presque identiques côté gauche et droite, ce qui n’est pas le cas pour tous les taxons de pectinidés. Rem : Le système nerveux est centré autour d’un « ganglion viscéral » . La boucle finale de l'intestin passe directement à travers le ventricule du coeur avant d'atteindre son extrémité en forme de u. |
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Derivative work[1]
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Author | KDS444/KDS4444 |
SVG development InfoField | This oversized vector image was created with Adobe Illustrator. |
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Licensing
I, the copyright holder of this work, hereby publish it under the following license:
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3 April 2013
File history
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Date/Time | Dimensions | User | Comment | |
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current | 04:02, 27 January 2015 | 857 × 653 (5.88 MB) | KDS4444 | Fixed problem with blue eyes appearing very small. should all now appear normal sized. still passes validation. |
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Height | 652.574px |
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