[Effect of the orbital-frontal cortex on several autonomic functions].

It is not only the cortex of orbito-insular complex ("vagal" zone) but also the proreal cortex (frontal zone) which take part in regulation of respiration, blood pressure, rhythmical heart activity. Cortico-fugal impulses spread along two tracts from the proreal gyrus: to the trunk vegetative centers directly and indirectly -- through the orbital gyrus. The experiments with combined destruction of main efferent tracts of the orbito--frontal cortex showed the forebrain medial bundle to be the principal morphological tract of the orbito-frontal cortex projecting to the trunk vegetative centers.