part of part of ventral tegmental area brainstem nucleus nucleus of midbrain tegmentum midbrain nucleus parabrachial pigmental nucleus FMA:77496 HBA:9473 neuronames:2264 PBP UBERON:0013738 DHBA:12263 BAMS:PBP NLX:144307 parabrachial pigmented nucleus Nucleus identified in the medial ventral tegmental area that borders the red nucleus and superior cerebellar peduncle dorsally, the medial lemniscus laterally, the subtantia nigra pars compacta and paranigral nucleus ventrally and the rostral linear nucleus and interfascicular nucleus medially. Generally, the largest nucleus in the ventral tegmental area, occupying an average of 50% of the total volume as measured in rat, cat, monkey and human.