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单词 statocyst
释义

statocyst

enUK

stat·o·cyst

S0720700 (stăt′ə-sĭst′)n. A small organ of balance in many invertebrates, consisting of a fluid-filled sac containing statoliths that stimulate sensory cells and help indicate position when the animal moves.

statocyst

(ˈstætəʊˌsɪst) n (Zoology) an organ of balance in some invertebrates, such as crustaceans, that consists of a sensory vesicle containing small granules. See statolith

stat•o•cyst

(ˈstæt əˌsɪst)

n. an organ of equilibrium in certain invertebrates, consisting of a fluid-filled sac enclosing sensory hairs and particles of lime or sand. [1900–05]
Translations

Statocyst

enUK

statocyst

[′stad·ə‚sist] (botany) A cell containing statoliths in a fluid medium. Also known as statocyte. (invertebrate zoology) A sensory vesicle containing statoliths and which functions in the perception of the position of the body in space.

Statocyst

 

(1) An auditory vesicle, the organ of equilibration in invertebrates. Statocysts are in the form of a pit or a vesicle embedded under the outer skin covering. They may also be in the form of a flask-shaped protrusion (for example, in medusae and sea urchins). A statocyst contains one or more solid formations, which are known as statoliths, or otoliths. When the body position is changed, the otoliths move, thus stimulating the sensory cells of the statocyst. The nerve impulse is transmitted from the sensory cells along the nerve fibers to the central nervous system, causing a response that leads to restoration of equilibrium.

(2) A plant cell in which tiny, mobile starch granules, known as statoliths, are formed. Statocysts are found in the rootcaps, the apices of cereal coleoptiles, and other growing parts.

statocyst

enUK

statocyst

(stăt′ə-sĭst′)n. A small organ of balance in many invertebrates, consisting of a fluid-filled sac containing statoliths that stimulate sensory cells and help indicate position when the animal moves.

statocyst

an organ of balance in which a STATOLITH (2) rests amongst hairlike projections of sensory cells. A change in position of the animal moves the statolith against a receptor, sending a nervous impulse to the central nervous system.
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