The
lobe is an arc-shaped region of
cortex on the medial surface of each
cerebral hemisphere of the mammalian brain, consisting of parts of the frontal, parietal and temporal lobes. The term is ambiguous, with some authors including the
paraterminal gyrus, the
subcallosal area, the
cingulate gyrus, the
parahippocampal gyrus, the
dentate gyrus, the
hippocampus and the
subiculum; while the
Terminologia Anatomica includes the
cingulate sulcus, the cingulate gyrus, the
isthmus of cingulate gyrus, the
fasciolar gyrus] the parahippocampal gyrus, the parahippocampal sulcus, the
dentate gyrus, the fimbrodentate sulcus, the
fimbria of hippocampus, the
collateral sulcus, and the
rhinal sulcus, and omits the hippocampus.