abstract perfusion of phe-met-arg-phe-nh ( 2 ) ( fmrfamide ) , an endogenous neuropeptide , through the gill of aplysia significantly potentiates the amplitude of the gill withdrawal reflex evoked by tactile stimulation of the siphon with or without the central nervous system present .
C0060608
fmrfamide
C0027895
neuropeptide