thoracic legs

thoracic legs
The five posterior pairs of thoracic appendages of a decapod crustacean; generally used for walking, although the first or second pair may be modified as large claws and the fifth pair as swimming paddles [Bliss, 1982].

Crustacea glossary. . 2011.

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  • Thoracic duct — A vascular structure which recirculates lymph into the blood stream. It begins in the abdomen and tracks alongside the aorta and esophagus to eventually join with the left brachiocephalic vein. * * * thoracic duct n the main trunk of the system… …   Medical dictionary

  • thoracic duct — one of the two main trunks of the lymphatic system. It receives lymph from both legs, the lower abdomen, left thorax, left side of the head, and left arm and drains into the left innominate vein …   The new mediacal dictionary

  • malacostracan — /mal euh kos treuh keuhn/, adj. 1. belonging or pertaining to the crustacean subclass Malacostraca, which includes the lobsters, shrimps, crabs, etc. n. 2. a malacostracan crustacean. [1825 35; < NL Malacostrac(a) order of crustacea ( < Gk, neut …   Universalium

  • crustacean — /kru stay sheuhn/, n. 1. any chiefly aquatic arthropod of the class Crustacea, typically having the body covered with a hard shell or crust, including the lobsters, shrimps, crabs, barnacles, and wood lice. adj. 2. belonging or pertaining to the… …   Universalium

  • insect — insectival /in sek tuy veuhl/, adj. /in sekt/, n. 1. any animal of the class Insecta, comprising small, air breathing arthropods having the body divided into three parts (head, thorax, and abdomen), and having three pairs of legs and usually two… …   Universalium

  • Insect morphology — Legend of body parts Tagmata : A Head, B Thorax, C Abdomen. 1. antenna 2. ocelli (lower) 3. ocelli (upper) 4. compound eye 5. brain (cerebral ganglia) 6. prothorax …   Wikipedia

  • dipteran — /dip teuhr euhn/, adj. 1. dipterous (def. 1). n. 2. a dipterous insect. [1835 45; DIPTER(A) + AN] * * * Any member of the more than 85,000 species in the insect order Diptera (the two winged, or true, flies), characterized by the use of only one… …   Universalium

  • apterygote — /ap ter i goht , ap teuhr /, adj. belonging or pertaining to the Apterygota, a subclass of primitive wingless insects that undergo little or no metamorphosis. Also, apterygotous /ap ter i goh teuhs/. [ < NL Apterygota name of the subclass, equiv …   Universalium

  • decapod — decapodan /deuh kap euh dn/, adj., n. decapodous, adj. /dek euh pod /, n. 1. any crustacean of the order Decapoda, having five pairs of walking legs, including the crabs, lobsters, crayfish, prawns, and shrimps. 2. any dibranchiate cephalopod… …   Universalium

  • Clam shrimp — Temporal range: Devonian–Recent …   Wikipedia

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