Anatomy
suprachiasmatic nucleus Audio
su·pra·chi·as·mat·ic nu·cle·us
Subclass of:
Hypothalamus, Anterior
Definitions related to suprachiasmatic nucleus:
  • A small group of nerve cells located in the hypothalamus that controls the sleep/wake cycle.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
  • A tear-shaped dense area of cells in the hypothalamus, which is responsible for regulating circadian rhythms.
    NCI
    U.S. National Cancer Institute, 2021
  • An ovoid densely packed collection of small cells of the anterior hypothalamus lying close to the midline in a shallow impression of the OPTIC CHIASM.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Small group of nerve cell bodies in the supraoptic region of the hypothalamus, just above the optic chiasm; influences rhythmic aspects of hypothalamic functions in many vertebrate species.
    CRISP Thesaurus
    National Institutes of Health, 2006
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