part_of
part of
part of
only in taxon
capable of part of
capable of part of
memory
Mammalia
limbic system
dentate gyrus of hippocampal formation
Ammon's horn
http://upload.wikimedia.org/wikipedia/commons/2/2e/Gray739-emphasizing-hippocampus.png
ammon horn
SCTID:361561007
Non-mammalian species do not have a brain structure that looks like the mammalian hippocampus, but they have one that is considered homologous to it. The hippocampus, as pointed out above, is essentially the medial edge of the cortex. Only mammals have a fully developed cortex, but the structure it evolved from, called the pallium, is present in all vertebrates, even the most primitive ones such as the lamprey or hagfish. The pallium is usually divided into three zones: medial, lateral, and dorsal. The medial pallium forms the precursor of the hippocampus. It does not resemble the hippocampus visually, because the layers are not warped into an S shape or enwrapped by the dentate gyrus, but the homology is indicated by strong chemical and functional affinities. There is now evidence that these hippocampal-like structures are involved in spatial cognition in birds, reptiles, and fish. In birds, the correspondence is sufficiently well established that most anatomists refer to the medial pallial zone as the 'avian hippocampus'. The story for fish is more complex. In teleost fish (which make up the great majority of existing species), the forebrain is distorted in comparison to other types of vertebrates: most neuroanatomists believe that the teleost forebrain is essentially everted, like a sock turned inside-out, so that structures that lie in the interior, next to the ventricles, for most vertebrates, are found on the outside in teleost fish, and vice versa. One of the consequences of this is that the medial pallium ('hippocampal' zone) of a typical vertebrate is thought to correspond to the lateral pallium of a typical fish. Several types of fish (particularly goldfish) have been shown experimentally to have strong spatial memory abilities, even forming 'cognitive maps' of the areas they inhabit.[WP]
UBERON:0004165
NCIT:C32374
hippocampus
Ammon's horn
EV:0100180
BIRNLEX:721
uberon
MAT:0000114
BAMS:CA
Ammons horn
http://scalablebrainatlas.incf.org/services/thumbnail.php?template=ABA07&size=L&dim=2d3d&format=png®ion=CA
MBA:375
EMAPA:32772
PBA:128012244
CALOHA:TS-0460
EMAPA:32845
hippocampal
UBERON:0003940
Ammon horn fields
FMA:62493
cornu ammonis
GAID:623
NCIT:C12444
EFO:0000530
hippocampus proper
hippocampus major
MIAA:0000114
DMBA:16124
UMLS:C0019564
Wikipedia:Hippocampus
EHDAA2:0004443
ammon gyrus
UBERON:0001954
neuronames:3157
hippocampus proprius
DHBA:10296
MA:0000191
BTO:0003705
BM:Tel-CAM
A part of the brain consisting of a three layered cortex located in the forebrain bordering the medial surface of the lateral ventricle. The term hippocampus is often used synonymously with hippocampal formation which consists of the hippocampus proper or Cornu Ammonis, the dentate gyrus and the subiculum.
VHOG:0001177
MESH:D006624
hippocampal formation
limbic lobe
regional part of brain