Cornu ammonis, literally "Amun's horns", is another name for the hippocampus. Abbreviated as CA, the term is also used to refer to the different hippocampal subfields, including CA1, CA2, and CA3. For example, input comes into the hippocampus from the entorhinal cortex to the dentate gyrus. The dentate gyrus then sends information to the next relay within the hippocampus, CA3.
Cut in cross section, the hippocampus is a C-shaped structure that resembles a ram's horn. The name cornu ammonis refers to the Egyptian deity Amun, who has the head of a ram. The horned appearance of the hippocampus is caused by cell density differentials and the existence of varying degrees of neuronal fibers.
- BrainInfo at the University of Washington hier-165 - CA1
- BrainInfo at the University of Washington hier-166 - CA2
- BrainInfo at the University of Washington hier-167 - CA3
- MeSH Hippocampus
- BrainMaps at UCDavis hippocampus
|Telencephalon (cerebrum, cerebral cortex, cerebral hemispheres) - edit|
frontal lobe: precentral gyrus (primary motor cortex, 4), precentral sulcus, superior frontal gyrus (6, 8), middle frontal gyrus (46), inferior frontal gyrus (Broca's area, 44-pars opercularis, 45-pars triangularis), prefrontal cortex (orbitofrontal cortex, 9, 10, 11, 12, 47)
temporal lobe: transverse temporal gyrus (41-42-primary auditory cortex), superior temporal gyrus (38, 22-Wernicke's area), middle temporal gyrus (21), inferior temporal gyrus (20), fusiform gyrus (36, 37)
limbic lobe/fornicate gyrus: cingulate cortex/cingulate gyrus, anterior cingulate (24, 32, 33), posterior cingulate (23, 31),
Some categorizations are approximations, and some Brodmann areas span gyri.
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