The<unk>  is a sulcus (brain fold) on the<unk>  cortex in the medial wall of the cerebral cortex. The frontal and parietal lobes are separated from the<unk>  gyrus by the<unk> . It terminates as the marginal sulcus of the<unk> . It sends a ramus to separate the paracentral lobule from the frontal gyri, the paracentral sulcus.
Cingulate sulcus
Postcentral sulcus
Collateral eminence
Fusiform body area
Frontal eye fields
Interventricular foramina 
Piriform cortex
Pretectal area