paratrigeminal nucleus
Acronym: Pa5
The term paratrigeminal nucleus refers to a group of cells located lateral to the spinal trigeminal tract of the medulla and medial to the spinocerebellar tracts at the level of the spinal trigeminal nucleus. The cells, identified by Nissl stain, are partially embedded in the adjacent tracts; their distribution varies by species. The paratrigeminal nucleus may represent an extension of the lateral cervical nucleus into the medulla ( Swanson-2004 ). It is found in the human ( Carpenter-1983 ), the macaque ( Paxinos-2009a ), the rat ( Swanson-2004 ) and the mouse ( Paxinos-2001 ). In the functional model of central nervous system organization it is classified as part of the subcortical somatosensory system ( Swanson-2004 ) (see Models Where It Appears below).

Also known as: Nucleus paratrigeminalisNeuroNames ID : 761

Species Having or Lacking this Structure

All Names & Sources

Internal Structure

Cells Found There

Genes Expressed There

Locus in Brain Hierarchy


Models Where It Appears

Publications About It

BrainInfo                           Copyright 1991-present                          University of Washington