Anatomy
nucleus accumbens
Subclass of:
Ventral Striatum
Definitions related to nucleus accumbens:
  • (accumbens nucleus) A nucleus composed of neurons in the forebrain.
    NCI
    U.S. National Cancer Institute, 2021
  • A nucleus comprising neurons in the forebrain, ventral to the dorsal caudate and putamen.
    CDISC Terminology
    Clinical Data Interchange Standards Consortium (CDISC), 2021
  • Collection of pleomorphic cells in the caudal part of the anterior horn of the LATERAL VENTRICLE, in the region of the OLFACTORY TUBERCLE, lying between the head of the CAUDATE NUCLEUS and the ANTERIOR PERFORATED SUBSTANCE. It is part of the so-called VENTRAL STRIATUM, a composite structure considered part of the BASAL GANGLIA.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Part of the brain's reward pathway that is most tightly and consistently responsive to pleasure. Also known as the pleasure center.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
  • Part of the limbic lobe and the hypothalamic-limbic system; collection of pleomorphic cells in the caudal part of the anterior horn of the lateral ventricle, in the region of the olfactory tubercle, lying between the head of the caudate nucleus and the anterior perforated substance; it is part of the ventral striatum, a composite structure considered part of the basal ganglia; involved in narcotic addiction.
    CRISP Thesaurus
    National Institutes of Health, 2006
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