The term subtrigeminal part of the lateral reticular nucleus refers to one of three components of the lateral reticular nucleus as identified by multiple stains. Part of the medullary reticular formation, it is found in the human ( Paxinos-2012 ), the macaque ( Paxinos-2009a ), and the rat ( Paxinos-2009b ). The other two components are the lateral reticular nucleus proper and the parvicellular part of the lateral reticular nucleus.