the third set of fused ganglia composing the insect brain.

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  • tritocerebrum — n. [Gr. tritos, third; L. cerebrum, brain] (ARTHROPODA) The posterior (third) small part of an arthropod brain that gives rise to nerves that innervate the labium, the digestive tract (stomatogastric nerves), the chelicerae of chelicerates, and… …   Dictionary of invertebrate zoology

  • tritocerebrum — See: metacerebrum [Martin, 2005]. See: metacerebrum [McLaughlin, 1980]. Third ganglion of the crustacean brain, a postoral ganglion that probably represents the first postoral somite and that forms a pair of circumenteric connectives that extend… …   Crustacea glossary

  • tritocerebrum — tri·to·cerebrum …   English syllables

  • tritocerebrum — “+ noun Etymology: New Latin, from trit + cerebrum : the third segment of the brain of an insect innervating the labrum compare hindbrain …   Useful english dictionary

  • Arthropod head problem — The arthropod head problem is a long standing zoological dispute concerning the segmental composition of the heads of the various arthropod groups, and how they are evolutionarily related to each other. While the dispute has historically centered …   Wikipedia

  • brain — (Order Notostraca): Main concentration of nreve tissue in head; consists of supraesophagael ganglion (protocerebrum and deutocerebrum) and, posterior to mouth, tritocerebrum (ganglion of antennal somite). Continues posteriorly as ladder like… …   Crustacea glossary

  • supra-esophageal ganglion — Nerve plexus above esophagus in head of malacostracans [Moore and McCormick, 1969]. Nerve plexus above esophagus, equivalent to brain [McLaughlin, 1980]. (Order Cladocera): Main part of brain above (in front of) esophagus. Consists of… …   Crustacea glossary

  • Supraesophageal ganglion — The supraesophageal ganglion (insect brain) is the first part of the insect central nervous system. It receives and processes information from the first, second, and third metameres. The supraesophageal ganglion lies dorsal to the esophagus and… …   Wikipedia

  • Oberschlundganglion — Schematischer Aufbau eines typischen Strickleiternervensystems Das Oberschlundganglion ist bei Gliederfüßern wie Insekten, Krebsen, Spinnentieren und anderen Tieren mit einem Strickleiternervensystem (z. B. Bärtierchen und Regenwürmern) der… …   Deutsch Wikipedia

  • nervous system — Anat., Zool. 1. the system of nerves and nerve centers in an animal or human, including the brain, spinal cord, nerves, and ganglia. 2. a particular part of this system. Cf. autonomic nervous system, central nervous system, peripheral nervous… …   Universalium

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