supraesophageal ganglion
11brain — (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… …
12esophageal connective — (Order Cladocera): One of two strands of nerve tissue surrounding esophagus and connecting posterior part of brain with ventral nerve cord [Stachowitsch, 1992]. (Order Anostraca): One of two strands of nerve tissue extending around esophagus and… …
13ventral nerve cord — Ganglia or connectives in somites joined by single or double tract of nerve fibers running longitudinally beneath alimentary canal [McLaughlin, 1980]. (Order Cladocera): Pair of widely separated, longitudinal nerve cords extending into trunk from …
14circumesophageal connective — (Order Decapoda): One of two strands of nerve tissue surrounding esophagus and connecting dorsal supraesophageal ganglia with posterior subesophageal ganglia. May bear ganglia (paraesophageal ganglia). (Syn. esophageal connective) [Stachowitsch,… …
15Nervous system — Nerve redirects here. For other uses, see Nerve (disambiguation). This article is about the nervous system. For parts of the nervous system commonly called nerves, see Peripheral nerve. Nervous system The Human N …
16annelid — /an l id/, n. 1. any segmented worm of the phylum Annelida, including the earthworms, leeches, and various marine forms. adj. 2. belonging or pertaining to the Annelida. Also, annelidan /euh nel i dn/. [1825 35; see ANNELIDA] * * * Any member of… …
17insect — 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… …
18Arthropod 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 …
19tritocerebrum — 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… …
20deuterocerebrum — See: mesocerebrum [Martin, 2005]. One of two anterior dorsal supraesophageal ganglia in the crustacean brain; receives the antennulary nerves [Brusca and Brusca, 2002]. See: mesocerebrum [McLaughlin, 1980]. (Order Cladocera): Supraesophageal… …
