part of hypothalamus lateral hypothalamus 2021-03-04T10:11:32Z BTO:0006481 BrendaTissueOBO LH LHA Marion The lateral hypothalamus contains the primary orexinergic nucleus within the hypothalamus that widely projects throughout the nervous system. This system of neurons mediates an array of cognitive and physical processes, such as promoting feeding behavior and arousal, reducing pain perception, and regulating body temperature, digestive functions, and blood pressure, among many others. It extends throughout most of the rostrocaudal extent of the hypothalamus lateral to the column of the fornix; includes lateral tuberal nuclei, tuberomammillary nuclei, and diffuse populations of cells. area hypothalamica lateralis lateral hypothalamic area lateral hypothalamic region