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arcuate nucleus



  1. a cell group in the hypothalamus, located in the lowest part of the infundibulum adjacent to the median eminence.
  2. a variable assembly of small cell groups, probably outlying components of the pontine nuclei, on the anterior and medial aspects of the pyramid in the medulla oblongata.

Synonym(s): arcuate nucleus of thalamus

Synonym(s): nucleus arcuatus of intermediate hypothalamic areaTA, nucleus periventricularis posteriorTA, posterior periventricular nucleusTA

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.