the electrically ( 3 hz ) evoked [ 3h ] 5-ht release from slices of the medulla oblongata [ containing the nucleus tractus solitarii ( nts ) ] from wistar rats was inhibited by 5-ht and ne , and these effects were counteracted by metitepine and phentolamine , respectively .
C0025148
medulla oblongata
C0175518
nucleus tractus