Nucleus tractus solitarii
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The nucleus tractus solitarii (NTS, nucleus of the solitary tract) is a nucleus of neurons in the caudal brainstem. It transmits information from stretch- and chemoreceptors of the cardiovascular, respiratory and gastrointestinal systems, and from taste buds on the tongue. The NTS includes the A2 cell group of noradrenergic neurons, and projects densely to many regions of the hypothalamus and elsewhere.