摘要: According to the current state-of-art on brainstem functional anatomy and reticular formation, authors believe that nucleus tractus solitarii (NTS) is neural structure, which meets all conditions of hypothetical syncope generating, reflex centre. The afferent branch this arc represents information from different visceral sources including brain itself. efferent activating system (RAS). executive mechanism deactivation RAS done with active engagement NTS through solitarioreticular pathway (SRT) parabrachial nuclear complex (PBC). biological purpose would be resetting in case an unbearable vegetative input, code for triggering described.