maxillary segment

Online Dictionary of Invertebrate Zoology. . 2005.

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  • maxillary gland — Excretory organ in maxillary somite with duct opening on maxilla. (Syn. shell gland) [McLaughlin, 1980]. Excretory organ located in maxillary segment, having its duct opening on maxilla. (Syn. shell gland) [Moore and McCormick, 1969]. Nephridial… …   Crustacea glossary

  • maxillary glands — (ARTHROPODA) Glands belonging to the maxillary segment, possibly functioning in the lubrication of the mouthparts …   Dictionary of invertebrate zoology

  • Maxillary prominence — Diagram showing the regions of the adult face and neck related to the fronto nasal process and the branchial arches. (Maxillary process visible at center right.) …   Wikipedia

  • 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

  • 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

  • carapace — ( ) [Baba, 2005]. Entire animal, right appendages omitted, dorsal view, based on Munida. [Baba, 2005] ( ) [Baba, 2005]. Carapace, spines, based on Munida. [Baba, 2005] Head Shield cuticular structure arising from posterior margin of cephalon,… …   Crustacea glossary

  • carapace — n. [Sp. carapacho, covering] 1. Any fused series of sclerites covering a portion of the body. 2. (ARTHROPODA: Chelicerata) a. In Acari, the more or less fused dorsal sclerites of the cephalothorax covering the idiosoma of mites and ticks. b. In… …   Dictionary of invertebrate zoology

  • adductor muscle of carapace — Muscle attached to carapace for pulling it to the body (thorax) or connecting halves of bivalve shell (e.g. Conchostraca, Ostracoda, Leptostraca) or valves of cirriped capitulum for closure of them. In Cirripedia, any transverse muscles,… …   Crustacea glossary

  • Artery — A vessel that carries blood that is high in oxygen content away from the heart to the farthest reaches of the body. Since blood in arteries is usually full of oxygen, the hemoglobin in the red blood cells is oxygenated. The resultant form of… …   Medical dictionary

  • branch — An offshoot; in anatomy, one of the primary divisions of a nerve or blood vessel. A b.. See ramus, artery, nerve, vein. SYN: ramus (1) [TA]. accessory meningeal b. SYN: pterygomeningeal artery …   Medical dictionary

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