Tuberomammillary nucleus
Tuberomammillary nucleus
The Tuberomammillary nucleus (pronunciation: too-be-ro-mam-mil-lary nucleus) is a significant part of the hypothalamus in the human brain.
Etymology
The term "Tuberomammillary nucleus" is derived from its location and appearance. "Tubero-" refers to its proximity to the tuberal region of the hypothalamus, and "-mammillary" is due to its close association with the mammillary bodies.
Function
The Tuberomammillary nucleus is the brain's primary site for the synthesis and release of the neurotransmitter histamine. It plays a crucial role in the regulation of the sleep-wake cycle, arousal, learning, and memory.
Anatomy
The Tuberomammillary nucleus is located in the posterior hypothalamus, near the third ventricle and above the mammillary bodies. It is composed of histaminergic neurons, which are neurons that produce histamine.
Clinical Significance
Damage or dysfunction of the Tuberomammillary nucleus can lead to various neurological and psychiatric disorders, including insomnia, narcolepsy, Parkinson's disease, and Alzheimer's disease.
Related Terms
- Hypothalamus
- Histamine
- Neurotransmitter
- Sleep-wake cycle
- Mammillary bodies
- Third ventricle
- Insomnia
- Narcolepsy
- Parkinson's disease
- Alzheimer's disease
External links
- Medical encyclopedia article on Tuberomammillary nucleus
- Wikipedia's article - Tuberomammillary nucleus
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