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reticular nuclei of medulla oblongata


Definition: groups of neuron cell bodies located generally in the more central portions of each half of the medulla oblongata that are not all distinctly separated from each other yet may have specific connections. These nuclei are: gigantocellular reticular nucleus [TA] and its ventromedially located pars alpha [TA] (nucleus gigantocellularis [TA]), anterior gigantocellular reticular nucleus [TA] or ventral gigantocellular reticular nucleus [TAalt] (nucleus gigantocellularis anterior [TA]), lateral paragigantocellular reticular nucleus [TA] (nucleus paragigantocellularis lateralis [TA]), interfascicular nucleus of hypoglossal nerve [TA] (nucleus interfascicularis nervi hypoglossi [TA]), intermediate reticular nucleus [TA] (nucleus reticularis intermedius [TA]), parvocellular reticular nucleus [TA] (nucleus reticularis parvocellularis [TA]), posterior paragigantocellular reticular nucleus [TA] or dorsal paragigantocellular reticular nucleus [TAalt] (nucleus paragigantocellularis posterior [TA]), and medial reticular nucleus [TA] (nucleus reticularis medialis [TA]). The central reticular nucleus [TA] (nucleus reticularis centralis [TA]) can be divided into a dorsal part [TA] and a ventral part [TA] (pars dorsalis [TA], pars ventralis [TA]). The lateral reticular nucleus [TA] is located in the ventrolateral area of the medulla and can be divided into a magnocellular part [TA] (pars magnocellularis [TA]), a parvocellular part [TA] (pars parvocellularis [TA]), and a subtrigeminal part [TA] (pars subtrigeminalis [TA]).

Synonym(s): nucleus reticulares medullae oblongataeTA

See Also: reticular nuclei of the brainstem

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.