Arcuate nuclei
arcuate nuclei
arcuate nuclei pl.n.
A variable assembly of small-cell groups on the ventral and medial aspects of the pyramid in the medulla oblongata.
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- Arcus
a dense, horizontal, roll-shaped cloud sometimes occurring at the lower front portion of a cumulonimbus. Historical Examples The Romans originally called their triumphal arch fornix, not arcus. Rambles in Rome S. Russell Forbes A view of this is given by Donati, who calls it the arcus Domitiani. Old Rome Robert Burn In elderly persons we […]
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arcus cornealis arcus cornealis arcus cor·ne·a·lis (kôr’nē-ā’lĭs) n. An opaque, grayish ring at the periphery of the cornea just within the sclerocorneal junction, common among the elderly and resulting from a deposit of fatty granules in, or hyaline degeneration of, the lamellae and cells of the cornea. Also called anterior embryotoxon, arcus adiposus, arcus juvenilis, […]