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单词 effector
释义

effector


ef·fec·tor

E0048400 (ĭ-fĕk′tər)n.1. A muscle, gland, or organ capable of responding to a stimulus, especially a nerve impulse.2. A nerve ending that carries impulses to a muscle, gland, or organ and activates muscle contraction or glandular secretion.3. Biochemistry A small molecule or protein that alters biochemical processes in a cell, as by decreasing or increasing the activity of an enzyme.4. Computers A device used to produce a desired change in an object in response to input.

effector

(ɪˈfɛktə) or

effecter

n (Physiology) physiol a nerve ending that terminates in a muscle or gland and provides neural stimulation causing contraction or secretion

ef•fec•tor

(ɪˈfɛk tər)

n. 1. Also, effecter. a person or thing that effects something. 2. a. an organ, cell, etc., that reacts to a nerve impulse, as a muscle by contracting or a gland by secreting. b. the part of a nerve that conveys such an impulse. [1595–1605; < Latin]
Thesaurus
Noun1.effector - one who brings about a result or event; one who accomplishes a purposeeffecterindividual, mortal, person, somebody, someone, soul - a human being; "there was too much for one person to do"
2.effector - a nerve fiber that terminates on a muscle or gland and stimulates contraction or secretionnerve fiber, nerve fibre - a threadlike extension of a nerve cellendplate, end-plate, motor end plate - the flattened end of a motor neuron that transmits neural impulses to a muscle
3.effector - an organ (a gland or muscle) that becomes active in response to nerve impulsesorgan - a fully differentiated structural and functional unit in an animal that is specialized for some particular functionsense organ, sensory receptor, receptor - an organ having nerve endings (in the skin or viscera or eye or ear or nose or mouth) that respond to stimulation
Translations

Effector


effector

[ə′fek·tər] (biochemistry) Anactivator of an allosteric enzyme. (control systems) A motor, solenoid, or hydraulic piston that turns commands to a teleoperator into specific manipulatory actions. (physiology) A structure that is sensitive to a stimulus and causes an organism or part of an organism to react to the stimulus, either positively or negatively.

Effector

 

(1) The terminal link in the chain of neurons in the reflex arc. The effectors of the central nervous system transmit impulses to the peripheral organs and tissues.

(2) In animals and man, one of the effector organs by means of which the body responds to external and internal stimuli or engages in work activity. Depending on the nature and purpose of the response, effectors form dynamic systems that include various organs; for example, in the case of physical labor they include the muscles, blood vessels, heart, and endocrine glands. Chromatophores, luminescent organs, and electric organs are also included in the category of effectors.

Effector regulation takes place both on the organ level and on the level of cellular and subcellular formations; such regulation performs the function of triggering the beginning and cessation of work and has an adaptotrophic effect (intensiveness and qualitative characteristics of the effector reaction). The composition and interrelation of the effectors within a system depend on the degree of conditioning and reinforcement of the response and on the state of the effectors.

(3) In biochemistry, a metabolic product that by combining with an enzyme increases or diminishes its activity.

V. I. MEDVEDEV

effector


effector

 [ef-fek´ter] 1. an agent that mediates a specific effect, as an allosteric effector or an effector cell.2. an organ that produces an effect, such as contraction or secretion, in response to nerve stimulation; see also receptor.allosteric effector one that binds to an enzyme at a site other than the active site.

ef·fec·tor

(ē-fek'tŏr, -tōr), 1. As defined by Sherrington, a peripheral tissue that receives nerve impulses and reacts by muscular contractioon, glandular secretion, or electric discharge (from an electric organ, as in the case of certain bony fishes such as the electric eel). 2. A small metabolic molecule that, by combining with a repressor gene, depresses the activity of an operon. 3. A small molecule that binds to a protein or other macromolecule and, in so doing, alters the activity of that macromolecule. 4. An individual or a substance, technique, procedure, or person causing an effect. [L. producer]

effector

(ĭ-fĕk′tər)n.1. A muscle, gland, or organ capable of responding to a stimulus, especially a nerve impulse.2. A nerve ending that carries impulses to a muscle, gland, or organ and activates muscle contraction or glandular secretion.3. Biochemistry A small molecule or protein that alters biochemical processes in a cell, as by decreasing or increasing the activity of an enzyme.

effector

An organ, such as a gland or muscle, that responds to a motor stimulation. See Allosteric effector.

ef·fec·tor

(e-fek'tŏr) 1. A peripheral tissue that receives nerve impulses and reacts by contraction (muscle), secretion (gland), or a discharge of electricity (electric organ of certain bony fishes). 2. A small metabolic molecule that, by combining with a repressor gene, depresses the activity of an operon. 3. A small molecule that binds to a protein and, in so doing, alters the activity of that protein. 4. A substance, technique, procedure, or individual that causes an effect. [L. producer]

effector

a structure or organ that brings about an action of'effect’ as a result of a stimulus received through a RECEPTOR which can come from the CNS or from a hormone. The effector is usually a muscle but can be a gland.

ef·fec·tor

(e-fek'tŏr) 1. Peripheral tissue that receives nerve impulses and reacts by muscular contraction, glandular secretion, or electric discharge (from an electric organ, as in the case of certain bony fishes such as the electric eel). 2. Small metabolic molecule that, by combining with a repressor gene, depresses the operon activity. [L. producer]

effector


Related to effector: Effector T cells
  • noun

Synonyms for effector

noun one who brings about a result or event

Synonyms

  • effecter

Related Words

  • individual
  • mortal
  • person
  • somebody
  • someone
  • soul

noun a nerve fiber that terminates on a muscle or gland and stimulates contraction or secretion

Related Words

  • nerve fiber
  • nerve fibre
  • endplate
  • end-plate
  • motor end plate

noun an organ (a gland or muscle) that becomes active in response to nerve impulses

Related Words

  • organ

Antonyms

  • sense organ
  • sensory receptor
  • receptor
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