type i ppe neurons were observed in diverse brainstem structures including the mesencephalic and pontine central gray matter , various reticular and raphe nuclei , the ventral tegmental area of tsai , the interpeduncular nucleus , the nucleus of the brachium of the inferior colliculus , the ventral and dorsal tegmental nuclei of gudden , the sphenoid nucleus , the laterodorsal tegmental nucleus , barrington 's nucleus , the parabrachial region , the lateral lemniscus and its related nuclei , the trapezoid nucleus , the rostral and ventromedial periolivary nuclei , the mesencephalic trigeminal and principal sensory trigeminal nuclei , the locus coeruleus , the subcoeruleus nucleus , the medial and spinal vestibular nuclei , the dorsal and ventral cochlear nuclei , the medial and lateral cerebellar nuclei , the roller nucleus , and the intermedius nucleus of the medulla .
C0006121
brainstem structures
C0023951
locus coeruleus