- a cell group in the hypothalamus, located in the lowest part of the infundibulum adjacent to the median eminence.
- 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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