lateral reticular nucleus
Acronym: LRt
The term lateral reticular nucleus refers to a group of cells, classically defined on the basis of Nissl stain, that is located ventrolaterally in the medullary reticular formation of the human ( Carpenter-1983 ), the macaque ( Martin-2000 ), the rat ( Swanson-2004 ) and the mouse ( Dong-2004 ). In the rat and mouse it is subdivided into a magnocellular part of the lateral reticular nucleus and parvicellular part of the lateral reticular nucleus ( not to be confused with the parvicellular reticular nucleus ). The lateral reticular nucleus as defined by Nissl stain is not subdivided in most textbooks and brain atlases of primates. The A1 cell group of noradrenergic neurons is found in its vicinity ( Dahlstrom-1964; Felten-1983 ). Functionally it belongs to the postcerebellar and precerebellar nuclei of the behavior control column ( Swanson-2004 ).
     The nucleus is also defined on the basis of multiple stains as consisting of three parts in the human ( Paxinos-2012 ), the macaque ( Paxinos-2009a ), and the rat ( Paxinos-2009b ) and: the parvicellular part of the lateral reticular nucleus, the subtrigeminal part of the lateral reticular nucleus, and the lateral reticular nucleus proper. The nucleus proper and parvicellular part are found in the mouse ( Franklin-2008 ). The location of the nucleus proper and subtrigeminal part suggests that the combination may be the multistain equivalent of the magnocellular part identified by Nissl stain.

Also known as: Nucleus reticularis lateralisNeuroNames ID : 727

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