suprachiasmatic nucleus
noun Date: 1938 either of a pair of neuron clusters in the hypothalamus situated directly above the optic chiasma that receive photic input from the retina via the optic nerve and that regulate the body's circadian rhythms

New Collegiate Dictionary. 2001.

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  • suprachiasmatic nucleus — n either of a pair of neuron clusters in the hypothalamus situated directly above the optic chiasma that receive photic input from the retina via the optic nerve and that regulate the body s circadian rhythms abbr. SCN * * * nucleus… …   Medical dictionary

  • Suprachiasmatic nucleus — Infobox Brain Name = PAGENAME Latin = nucleus suprachiasmaticus GraySubject = GrayPage = Caption = Suprachiasmatic nucleus is SC , at center left, in blue. OC, in black, is optic chiasm. Caption2 = The left optic nerve and the optic tracts.… …   Wikipedia

  • suprachiasmatic nucleus — ˌ noun Etymology: supra + chiasmatic : either of a pair of neuron clusters in the hypothalamus situated directly above the optic chiasma that receive photic input from the retina via the optic nerve and that regulate the body s circadian rhythms …   Useful english dictionary

  • Nucleus — 1) In cell biology, the structure that houses the chromosomes. 2) In neuroanatomy, a group of nerve cells. * * * 1. In cytology, typically a rounded or oval mass of protoplasm within the cytoplasm of a plant or animal cell; it is surrounded by a… …   Medical dictionary

  • Lateral geniculate nucleus — Brain: Lateral geniculate nucleus Hind and mid brains; postero lateral view. (Lateral geniculate body visible near top.) Latin Corpus geniculatum laterale Part of Thalamus System …   Wikipedia

  • Edinger-Westphal nucleus — Brain: Edinger Westphal nucleus Section through superior colliculus (unlabeled) showing path of oculomotor nerve. ( Edinger Westphal nucleus is not on diagram, but would be near oculomotor nuclei.) …   Wikipedia

  • Oculomotor nucleus — Brain: Oculomotor nucleus Section through superior colliculus showing path of oculomotor nerve …   Wikipedia

  • Subthalamic nucleus — Brain: Subthalamic nucleus Coronal slices of human brain showing the basal ganglia, subthalamic nucleus (STN) and substantia nigra (SN) …   Wikipedia

  • Medial dorsal nucleus — Not to be confused with Dorsomedial hypothalamic nucleus. Brain: Medial dorsal nucleus Thalamic nuclei: MNG = Midline nuclear group AN = Anterior nuclear group MD = Medial dorsal nucleus VNG = Ventral nuclear group VA …   Wikipedia

  • Arcuate nucleus — This article is about the hypothalamic structure. For the structure in the medulla oblongata, see Arcuate nucleus (medulla). Brain: Arcuate nucleus Arcuate nucleus is AR , at bottom center, in green. Latin nucleus arc …   Wikipedia

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