taken together with the previous findings that phentolamine blocks the pressor response produced by npv-electrostimulation , but not of glu-injection into npv , the above results suggest that neurons in the caudal ventrolateral part of pag may either send axons passing through the nucleus parabrachialis ( npb ) and directly acting upon beta-receptors in rvl , or relay in npb and act indirectly on alpha-receptors in rvl to produce the pressor response .
C0027882
neurons
C0004461
axons