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Above (cranial to) the level of the motor neurons of the spinal or cranial nerves; the pathways the suprasegmental nerve fibers follow to reach the motor cell bodies in the brainstem; as used in clinical neurology, s. indicates disorders of movement caused by destruction or functional impairment of brain structures other than the motor neurons, such as the motor cortex, pyramidal tract, or striate body; e.g., s. palsy, as distinguished from the nuclear (or flaccid, or “lower motor neuron”) paralysis that results from destruction or functional impairment of the motor neurons or their axons in a peripheral nerve.

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su·pra·nu·cle·ar -'n(y)ü-klē-ər adj situated, occurring, or produced by a lesion superior or cortical to a nucleus esp. of the brain

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su·pra·nu·cle·ar (soo″prə-nooґkle-ər) located or occurring superior to or on the cortical side of a nucleus in the nervous system.

Medical dictionary. 2011.

Look at other dictionaries:

  • supranuclear — adjective Above the level of the motor neurons …   Wiktionary

  • supranuclear — su·pra·nuclear …   English syllables

  • supranuclear — “+ adjective Etymology: International Scientific Vocabulary supra + nuclear : situated above a nucleus; specifically : situated cortically with respect to a nucleus of the brain …   Useful english dictionary

  • supranuclear palsy — n PROGRESSIVE SUPRANUCLEAR PALSY …   Medical dictionary

  • supranuclear palsy — noun A rare degenerative disease involving the gradual deterioration and death of selected areas of the brain …   Wiktionary

  • supranuclear cataract — an opacity in the deep cortex of the lens, just above the nucleus …   Medical dictionary

  • supranuclear ophthalmoplegia — ophthalmoplegia caused by a lesion above the nuclei of the motor nerves of the eye …   Medical dictionary

  • supranuclear paralysis — pseudobulbar p …   Medical dictionary

  • Parálisis Supranuclear Progresiva — Saltar a navegación, búsqueda Parálisis Supranuclear Progresiva Clasificación y recursos externos Aviso médico CIE 10 …   Wikipedia Español

  • Progressive supranuclear palsy — Infobox Disease Name = Progressive supranuclear palsy Caption = DiseasesDB = 10723 ICD10 = ICD10|G|23|1|g|20 ICD9 = ICD9|333.0 ICDO = OMIM = 601104 MedlinePlus = eMedicineSubj = neuro eMedicineTopic = 328 MeshID = D013494 Progressive supranuclear …   Wikipedia

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