tritiated amino acid ( taa ) injections in some of the cortical regions which contained retrogradely labeled neurons confirmed projections to the insula from prefrontal granular cortex , orbital frontal cortex , prepiriform cortex , temporal pole , rhinal cortex , cingulate gyrus , frontal operculum , and parietal cortex .
C0007776
cortex
C0018427
cingulate gyrus