part of part of reticular formation http://upload.wikimedia.org/wikipedia/commons/9/9b/Gray701.png UBERON:0002275 NLX:143558 A composite substructure of the brainstem that consists of the midbrain reticular formation, the pontine reticular formation and the medullary reticular formation ( Carpenter-1983 ). FMA:77719 MA:0003185 SCTID:361552007 reticular formation (classical) neuronames:1223 MESH:D012154 reticular formation of the brainstem EMAPA:35188 It is essential for governing some of the basic functions of higher organisms, and is one of the phylogenetically oldest portions of the brain. FMA has a spinal cord reticular formation but we follow NNs (classical) to restrict this to brainstem structures. This means we also include the MA class for brainstem reticular formation here. FMA has subtypes of reticular formation but we treat this as a composite structure this class denotes the generic structure, and not a specific one such as medullary or pontine reticular formation. Wikipedia:Reticular_formation brainstem reticular formation BAMS:RET brain stem reticular formation brainstem regional part of brain