part of part of pontine raphe nucleus locus ceruleus laterodorsal tegmental nucleus nucleus subceruleus midbrain reticular formation median raphe nucleus nucleus raphes medianus Wikipedia:Median_raphe_nucleus FMA:72465 superior central nucleus raphe DHBA:12235 EMAPA:35551 superior central nucleus BAMS:MnR UBERON:0003004 MBA:679 BM:MR cell group b8 superior central tegmental nucleus MRN median nucleus of the raphe TODO - The term medial raphe nucleus refers to a composite structure that consists of the superior central nucleus and the inferior central nucleus of the pontine reticular formation ( Carpenter-1983 ) The median raphe nucleus (or superior central nucleus) is composed of polygonal, fusiform and pyriform neurons and exists rostral to the nucleus raphe pontis. One trait of the MRN is its inhibition by lysergic acid diethylamide and psilocin, two serotonin antagonist hallucinogens. The inactivation of the nucleus centralis superior via LSD produces a dose dependent inactivation in the MRN, but not in the raphe pallidus[WP,unvetted]. medial raphe nucleus neuronames:1391 nucleus centralis superior BIRNLEX:889 raphe nuclei nucleus of midbrain reticular formation