The tuberomammillary nucleus is a subnucleus of the posterior third of the hypothalamus. It consists of, largely, histaminergic and is involved with the control of arousal, sleep and circadian rhythm. Axons of the tuberomammillary nucleus project primarily to the cerebral cortex, thalamus, basal ganglia, basal forebrain, and hypothalamus. The projections to the cerebral cortex directly increase cortical activation and arousal, and projections to acetylcholinergic neurons of the basal forebrain and dorsal pons do so indirectly, by increasing the release of acetylcholine in the cerebral cortex. [WP,unvetted]. [ ]

Synonyms: caudal magnocellular nucleus tuberomammillary nucleus tuberomammillary hypothalamic nucleus mammiloinfundibular nucleus mammilloinfundibular nucleus

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Term information



latin term
nucleus tuberomamillaris [ NeuroNames:427 ]

dubious or contested synonym
tuberomamillary nucleus [ EV:0100237 ]

TM [ BIRNLEX:1271 ]

TM [ NIFSTD:NeuroNames_abbrevSource BIRNLEX:1271 ]

latin term
nucleus tuberomamillaris hypothalami [ NeuroNames:427 ]

has related synonym

nucleus tuberomamillaris hypothalami

tuberomamillary nucleus

nucleus tuberomamillaris

tubero-mamillary area


ventral tuberomammillary nucleus

tuberomammillary nucleus, ventral part