1. an arc-shaped nucleus that is found in the hypothalamus, within the brain. 2. Also refers to any of various small clusters of gray matter on the anterior surface of the medulla oblongata that form extensions of pontine nuclei. These clusters are associated with the somatosenses of the face,

ARCUATE NUCLEUS: "The arcuate nucleus forms part of the hypothalamus in the brain, and may also refer to gray matter on the medulla oblongata. "
Cite this page: N., Pam M.S., "ARCUATE NUCLEUS," in, April 7, 2013, (accessed April 20, 2021).