Note that this circuit is not activated by acetylcholine, which is of particular importance because the administration of atropine will not block the vagal stimulation of the G cells, as ACh is not the neurotransmitter for these cells.
Este circuíto non está activado por acetilcolina, o cal ten especial importancia porque a administración de atropina non bloquea a estimulación vagal das células G, xa que a acetilcolina non é o neurotransmisor para estas células .