Limbic system
schematic diagram showing the key position of the hypothalamus in the limbic system and shows surrounding it other subcortical structures of the limbic system, including the septum, paraolfactory area, anterior nucleus of the thalamus, portions of the basal ganglia, hippocampus, and amygdala. And surrounding the subcortical limbic areas is the limbic cortex, composed of a ring of cerebral cortex in each side of the brain (1) beginning in the orbitofrontal area on the ventral surface of the frontal lobes, (2) extend- ing upward into the subcallosal gyrus, (3) then over the top of the corpus callosum onto the medial aspect of the cerebral hemisphere in the cingulate gyrus, and finally (4) passing behind the corpus callosum and downward onto the ventromedial surface of the temporal lobe to the parahippocampal gyrus and uncus.
