fibers containing proc-li were seen in the median eminence and in other hypothalamic nuclei , and in the lower brainstem in cranial motor nuclei including the dorsal motor nucleus of the vagus nerve , the motor trigeminal nucleus , the facial nucleus and nucleus ambiguous , and in lower numbers in the nucleus of the solitary tract and locus coeruleus .
C0006121
brainstem
C0023951
locus coeruleus