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Archicortex is basically categorized under allocortex. It is any cortex with fewer than six areas, specifically three layered hippocampal cortexes. It is necessary for hippocampus formation.
The archicortex is a portion of the cerebral cortex that, with the paleocortex, develops in association with the olfactory system, and which is phylogenetically older than the neocortex and lacks its layered structure. The embryonic archicortex corresponds to the cortex of the dentate gyrus and hippocampus in mature mammals. Being part of the limbic system, it has functions related to emotions and formation of memory. Signals being sent from the limbic lobe to the hippocampal formations can go via the archicortex as an intermediate.
See also
Paralimbic cortex
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Brain: telencephalon (cerebrum, cerebral cortex, cerebral hemispheres) |
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| Frontal lobe |
Precentral gyrus ( Primary motor cortex, 4)
Superior frontal gyrus/Frontal eye fields (6, 8, 9), Middle frontal gyrus (46), Inferior frontal gyrus/Broca's area (44-Pars opercularis, 45-Pars triangularis)
Orbitofrontal cortex (10, 11, 12, 47)
Prefrontal cortex, Premotor cortex
Precentral sulcus - Superior frontal sulcus - Inferior frontal sulcus - Olfactory sulcus
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| Parietal lobe |
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| Occipital lobe |
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| Temporal lobe |
Primary auditory cortex ( 41, 42), Superior temporal gyrus ( 38, 22/ Wernicke's area), Middle temporal gyrus ( 21), Inferior temporal gyrus ( 20)
Fusiform gyrus ( 37) Medial temporal lobe ( Amygdala, Parahippocampal gyrus ( 27, 28, 34, 35, 36)
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| Cingulate cortex/gyrus |
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| Interlobar sulci/fissures |
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| White matter tracts |
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| Other |
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| Some categorizations are approximations, and some Brodmann areas span gyri. |
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