reticular formation
noun Date: 1887 a mass of nerve cells and fibers situated primarily in the brain stem and functioning upon stimulation especially in arousal of the organism

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • reticular formation — n a mass of nerve cells and fibers situated primarily in the brain stem and functioning upon stimulation esp. in arousal of the organism called also reticular substance * * * a network of nerve pathways and nuclei throughout the brainstem,… …   Medical dictionary

  • Reticular formation — Brain: reticular formation Coronal section of the pons, at its upper part. (Formatio reticularis labeled at left.) …   Wikipedia

  • reticular formation — (also reticular activating system) noun Anatomy a diffuse network of nerve pathways in the brainstem connecting the spinal cord, cerebrum, and cerebellum …   English new terms dictionary

  • reticular formation — noun a complex neural network in the central core of the brainstem; monitors the state of the body and functions in such processes as arousal and sleep and attention and muscle tone • Syn: ↑RF • Hypernyms: ↑neural network, ↑neural net • Part… …   Useful english dictionary

  • reticular formation — a network of neurons in the brainstem involved in consciousness, regulation of breathing, the transmission of sensory stimuli to higher brain centers, and the constantly shifting muscular activity that supports the body against gravity. [1885 90] …   Universalium

  • reticular formation — noun Part of the brain that is involved in actions such as awaking/sleeping cycle, and filtering incoming stimuli to discriminate irrelevant background stimuli …   Wiktionary

  • reticular formation — a network of nerve pathways and nuclei throughout the brainstem, connecting motor and sensory nerves to and from the spinal cord, the cerebellum and the cerebrum, and the cranial nerves. It is estimated that a single neurone in this network may… …   The new mediacal dictionary

  • reticular formation — retic′ular forma′tion n. phl a network of neurons in the brainstem involved in consciousness, breathing, and the transmission of sensory stimuli to higher brain centers • Etymology: 1885–90 …   From formal English to slang

  • reticular formation of brainstem — see formatio reticularis medullae oblongatae, formatio reticularis tegmenti pontis, and formatio reticularis tegmenti mesencephali …   Medical dictionary

  • reticular formation of medulla oblongata — formatio reticularis medullae oblongatae …   Medical dictionary

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