HIPPOCAMPUS

Pronunciation (US): (GB):

Irregular inflected form: hippocampi

I. (noun)

Sense 1

Meaning:

Seahorses

Synonyms:

genus Hippocampus; Hippocampus

Classified under:

Nouns denoting animals

Hypernyms ("Hippocampus" is a kind of...):

fish genus (any of various genus of fish)

Meronyms (members of "Hippocampus"):

sea horse; seahorse (small fish with horse-like heads bent sharply downward and curled tails; swim in upright position)

Holonyms ("Hippocampus" is a member of...):

family Syngnathidae; Syngnathidae (pipefishes)

Sense 2

Meaning:

A complex neural structure (shaped like a sea horse) consisting of grey matter and located on the floor of each lateral ventricle; intimately involved in motivation and emotion as part of the limbic system; has a central role in the formation of memories

Classified under:

Nouns denoting body parts

Hypernyms ("hippocampus" is a kind of...):

neural structure (a structure that is part of the nervous system)

Holonyms ("hippocampus" is a part of...):

limbic brain; limbic system; visceral brain (a system of functionally related neural structures in the brain that are involved in emotional behavior)

Credits

Context examples:

The patients had depth electrodes implanted into several brain structures, including the hippocampus.

(Storing memories of recent events, NIH)

The scientific name for the seahorse is Hippocampus, also the name of an important part of the human brain.

(Tiny Neptune Moon Spotted by Hubble May Have Broken from Larger Moon, NASA)

Electrical recordings and tracing experiments showed that many of the hypothalamic MCH cells sent inhibitory messages, via long stringy axons, to the hippocampus, the brain’s memory center.

(The brain may actively forget during dream sleep, National Institutes of Health)

Tetanic stimulation of afferents in the CA1 region of the hippocampus induces glutamate release and activation of glutamate receptors in dendritic spines.

(Long-Term Potentiation Pathway, NCI Thesaurus/KEGG)

Neuregulin-2 is primarily found in granule cells in the cerebellum, hippocampus, and olfactory bulb.

(Neuregulin 2, NCI Thesaurus)

The second of four fields in the cornu ammonis of the hippocampus which receives inputs from the perforant path originating in layer II of the entorhinal cortex.

(CA2 Field of the Cornu Ammonis, NCI Thesaurus)

A serrated strip of gray matter under the medial border of the hippocampus and in its depths.

(Dentate Gyrus, NCI Thesaurus)

This area contains pyramidal cells that send axons to the CA1 field and acts as a pacemaker, setting the pace for neuronal firing in the hippocampus.

(CA3 Field of the Cornu Ammonis, NCI Thesaurus)

The first of four fields in the cornu ammonis of the hippocampus which receives inputs from the perforant path originating in layer III of the entorhinal cortex.

(CA1 Field of the Cornu Ammonis, NCI Thesaurus)

The white myelinated fibers in the hippocampus adjacent to the wall of the lateral ventricle.