Overview

zona incerta


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n.

A small ribbon of nerve cell bodies on each side of the hypothalamus that control drinking. Stimulation in this area instigates polydipsia or excessive drinking, and a lesion can result in adipsia or cessation of drinking. [From Latin zona a girdle or belt + incertus uncertain or obscure, so called because its function was unknown for a long time after its discovery]

Subjects: Psychology.


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