| 释义 |
arcuate nucleus
arcuate nucleusn. Any of various specialized groups of nerve cells in the medulla oblongata, thalamus, or hypothalamus of the brain.EncyclopediaSeenucleusarcuate nucleus
ar·cu·ate nu·cle·us [TA] 1. Synonym(s): nucleus arcuatus of intermediate hypothalamic area [TA], nucleus periventricularis posterior [TA], posterior periventricular nucleus [TA]Synonym(s): arcuate nucleus of thalamus2. a cell group in the hypothalamus, located in the lowest part of the infundibulum adjacent to the median eminence. Synonym(s): nucleus arcuatus of medulla oblongata [TA]3. 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): nucleus arcuatus [TA]arcuate nucleusn. Any of various specialized groups of nerve cells in the medulla oblongata, thalamus, or hypothalamus of the brain.arcuate nucleusA hypothalamic nucleus in the ventral wall of the third ventricle near the pituitary stalk. The arcuate nucleus produces inhibiting and releasing factors (adrenocorticotrophic hormone, beta-lipotrophic hormone, and beta-endorphin) for pituitary hormones. Synonym: infundibular nucleusSee also: nucleusAcronymsSeearea chart |