The cell bodies of orexinergic neurons are present in
Brains from humans with narcolepsy often contain fewer hypocretin (orexin) producing neurons in the hypothalamus. hypothalamic neurons release orexin to play a role inswitching between sleep and wakefulness Ganongs review of medical physiology;26rd edition;pg:268,273
Locus ceruleus
Dorsal raphe
Lateral hypothalamic area
Hippocampus
Nervous system