statocyst

statocyst
Cavity filled with fluid and particles acting as organ of orientation [Poore, 2004].
Diminutive organ providing sense of balance [McLaughlin, 1980].
Organ of balance at base of antennular peduncle in brachyurans [Ingle, 1992].
Sensory organ of awareness of rotation and position located at base of first antenna [Perez Farfante and Kensley, 1997].
(Order Decapoda):
Organ of equilibrium, one located in first segment of peduncle of each antennule. Innervated by branch of antennular nerve coming from brain and may contain statolith supported by sensory hairs. (open, closed; with/without statolith) [Stachowitsch, 1992].
(Order Amphipoda):
One of two small organs of equilibrium located dorsally in head; each statocyst contains one to five statoliths [Stachowitsch, 1992].
(Order Isopoda):
Organ of equilibrium located in telson of certain isopods; contains statolith [Stachowitsch, 1992].
(Order Isopoda):
Small saclike sensory organ, often containing granules, used to indicate to the animal its orientation [Kensley and Schotte, 1989].
(Order Mysida):
Organ of equilibrium, one located at base of inner branch (endopod) or each uropod. Contains statolith and is innervated by last abdominal ganglion [Stachowitsch, 1992].
(Superorder Syncarida):
In anaspidacean and stygocaridacean, organ of equilibrium located in first segment of each antennule [Stachowitsch, 1992].

Crustacea glossary. . 2011.

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  • statocyst — [stat′əsist΄] n. [< Gr statos, standing < histanai, to STAND + CYST] 1. Bot. a plant cell containing plastids, starch grains, or other statoliths 2. Zool. a sense organ found in many invertebrate animals, consisting typically of a fluid… …   English World dictionary

  • Statocyst — The statocyst is a balance organ present in some aquatic invertebrates (Cnidarians, Ctenophores, Bilaterians). It consists of a sac like structure containing a mineralised mass (statolith) and numerous innervated sensory hairs (setae). The… …   Wikipedia

  • statocyst — noun Etymology: International Scientific Vocabulary Date: 1902 an organ of equilibrium occurring especially among invertebrate animals and consisting usually of a fluid filled vesicle lined with sensory hairs that detect the position of suspended …   New Collegiate Dictionary

  • statocyst — n. [Gr. statos, fixed; kystis, bladder] An organ of balance found in many invertebrates, variable in structure from an open canal, vesicle, or closed chambers composed of one to many cells (lithocytes), that contains a concretion of granules of… …   Dictionary of invertebrate zoology

  • statocyst — An organ for the perception of gravity and thus body orientation, found in many invertebrate animals; a cavity lined with sensory cells and containing a statolith …   Dictionary of molecular biology

  • statocyst — /stat euh sist /, n. Zool. (in certain invertebrates) a sense organ consisting of a sac enclosing sensory hairs and particles of sand, lime, etc., that functions in maintaining equilibrium, serving to indicate position in space. [1900 05; stato… …   Universalium

  • statocyst — noun A balance organ present in some aquatic invertebrates, consisting of a sac like structure containing a statolith and numerous innervated setae …   Wiktionary

  • statocyst — n. organ which serves to maintain equilibrium in certain invertebrates (Zoology) …   English contemporary dictionary

  • statocyst — noun Zoology an organ of balance and orientation in some aquatic invertebrates …   English new terms dictionary

  • statocyst — stato·cyst …   English syllables

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