the distribution of upper alimentary tract vagal-glossopharyngeal afferents in the medulla oblongata has two primary groups of components , i.e. , a viscerotopic distribution in the nts involved in ingestive and respiratory reflexes and a distribution coextensive with fluoride-resistant acid-phosphatase-positive regions of the pti and spinal trigeminal nucleus presumably involved in visceral reflexes mediated by nociceptive or chemosensitive c fibers .
C0025148
medulla oblongata
C0175518
the nts