uncus (uns)

The term uncus refers to a superficial feature of the rostral part of the anterior parahippocampal gyrus where it "hooks around the hippocampal sulcus to form a medially protruding convolution" ( Carpenter-1983 ) on the anteromedial surface of the limbic lobe. In the human, the histologically defined structures underlying the uncal surface include the anterodorsal part of the entorhinal cortex where it covers the amygdala rostrally and the portion of the hippocampal complex (HPC) that bends back on itself caudally ( Mai-1997 ). In the macaque it is formed entirely by the hook portion of the HPC ( Paxinos-2009a ). Brain atlases of the rat and mouse show no equivalent feature. Many authors use the term 'uncus' and synonyms, such as 'uncinate gyrus', in reference to the combination of the topologically defined surface feature and the underlying histologically defined, volumetric components ( Anthoney-1994 ). In that sense, it is a hook-shaped substructure of the anterior-most part of the anterior parahippocampal gyrus ( Crosby-1962 ). Because the boundaries of the volumetric 'uncinate gyrus' do not correspond to the boundaries of its internal, histologically defined structures, and because activation of the histologically defined structures correlates significantly better with functions of the structures ( Glasser-2016 ), the term uncus (uns) and its synonyms are classified in NeuroNames as superficial features, which are useful anatomical landmarks, separately from the volumetric hippocampal complex (HPC), which is useful for analysis of neural functions ( Bowden-1997 Bowden-2012 ). Updated 25 May 2024.

Also known as: uncus, Uncus, Uncus hippocampi, uncus hippocampi, pyriform area (Crosby), uncinate gyrus, Gyrus uncinatus, uncus (Lockard)

NeuroNames ID: 40

All Names & Sources

Showing 24 synonym(s)

Name:

Haken

Language:

German

Organism:

human

Citation:

Georg Theme Verlag, Stuttgart, 1993

Source Title:

Anatomisches Wörterbuch

Name:

uncus

Language:

Italian

Organism:

human

Citation:

EdiSes, s.r.l.- Napoli, 1995

Source Title:

Fondamenti di Neuroanatomia

Name:

unkus

Language:

Indonesian

Organism:

human

Source:

Noback-1982

Citation:

Jakarta: Penerbit Buku Kedokteran EGC, 1982

Source Title:

Anatomi Susunan Saraf Manusia, Prinsip-Prinsip Dasar Neurobiologi

Name:

uncus

Language:

Indonesian

Organism:

human

Source:

Noback-1982

Citation:

Jakarta: Penerbit Buku Kedokteran EGC, 1982

Source Title:

Anatomi Susunan Saraf Manusia, Prinsip-Prinsip Dasar Neurobiologi

Name:

circunvolución uncinada

Language:

Spanish

Organism:

human

Citation:

edicion 4, Williams & Wilkins, Baltimore; traducción de Editorial Medica Panamericana, Buenos Aires, efectuada por el Dr. Alejandro Kaufman

Source Title:

Neuroanatomía Fundamentos

Name:

uncus

Language:

English

Organism:

human

Citation:

Baltimore: Williams and Wilkins Co., 1983

Source Title:

Human Neuroanatomy

Name:

Uncus

Language:

Latin

Organism:

human

Source:

Nomina-1983

Citation:

Fifth Edition, Williams and Wilkins Co., Baltimore, 1983

Source Title:

Nomina Anatomica

Name:

Uncus

Language:

Latin

Organism:

Macaca mulatta

Source:

Krieg-1975

Citation:

Brain Books, Evanston, Illinois, 1975

Source Title:

Interpretive Atlas Of The Monkey's Brain

Name:

Uncus hippocampi

Language:

Latin

Organism:

human

Source:

Mai-1997

Citation:

San Diego: Academic Press, 1997

Source Title:

Atlas of the Human Brain

Name:

uncus hippocampi

Language:

English

Organism:

human

Citation:

Boca Raton, Florida: CRC Press, 1994

Source Title:

Neuroanatomy And The Neurologic Exam: A Thesaurus of Synonyms, Similar Sounding Non-Synonyms And Terms Of Variable Meaning

Name:

pyriform area (Crosby)

Language:

English

Organism:

human

Source:

Crosby-1962

Citation:

New York: MacMillan, 1962

Source Title:

Correlative Anatomy of the Nervous System

Name:

крючок гиппокампа

Language:

Russian

Organism:

human

Citation:

AREA XVII, Moscow, 1996.

Source Title:

Stereoskopicheskii Atlas Mozga Cheloveka

Name:

uncus

Language:

Spanish

Organism:

human

Citation:

edicion 4, Williams & Wilkins, Baltimore; traducción de Editorial Medica Panamericana, Buenos Aires, efectuada por el Dr. Alejandro Kaufman

Source Title:

Neuroanatomía Fundamentos

Name:

gancho de la circunvolución del hipocampo

Language:

Spanish

Organism:

human

Citation:

edicion 4, Williams & Wilkins, Baltimore; traducción de Editorial Medica Panamericana, Buenos Aires, efectuada por el Dr. Alejandro Kaufman

Source Title:

Neuroanatomía Fundamentos

Name:

uncus

Language:

French

Organism:

human

Citation:

Springer-Verlag, Paris, 1992

Source Title:

Le cerveau humain: Surface, coupes seriees tridimensionnelles et IRM

Name:

Uncus

Language:

English

Organism:

Macaca mulatta

Citation:

Amsterdam: Elsevier-Academic Press. 2009

Source Title:

The Rhesus Monkey Brain, Second Edition

Name:

uns

Language:

acronym

Organism:

Unspecified

Source:

NeuroNames

Citation:

University of Washington, Seattle, WA

Source Title:

NeuroNames

Name:

Un

Language:

acronym

Organism:

human

Source:

Mai-1997

Citation:

San Diego: Academic Press, 1997

Source Title:

Atlas of the Human Brain

Name:

uncinate gyrus

Language:

English

Organism:

human

Source:

Crosby-1962

Citation:

New York: MacMillan, 1962

Source Title:

Correlative Anatomy of the Nervous System

Name:

Gyrus uncinatus

Language:

Latin

Organism:

human

Source:

Riley-1943

Citation:

Baltimore: Williams and Wilkins Co., 1943

Source Title:

An Atlas Of The Basal Ganglia, Brain Stem And Spinal Cord (Based On Myelin-Stained Material)

Name:

uncus (Lockard)

Language:

English

Organism:

human

Citation:

Boca Raton, Florida: CRC Press, 1994

Source Title:

Neuroanatomy And The Neurologic Exam: A Thesaurus of Synonyms, Similar Sounding Non-Synonyms And Terms Of Variable Meaning

Name:

крючковидная извилина

Language:

Russian

Organism:

human

Citation:

AREA XVII, Moscow, 1996.

Source Title:

Stereoskopicheskii Atlas Mozga Cheloveka

Name:

gyrus uncinatus

Language:

French

Organism:

human

Citation:

Springer-Verlag, Paris, 1992

Source Title:

Le cerveau humain: Surface, coupes seriees tridimensionnelles et IRM

Name:

UG

Language:

acronym

Organism:

macaque

Source:

Dubach-2008

Citation:

http://braininfo.rprc.washington.edu/TemplateNeuroMaps.aspx

Source Title:

NeuroMaps - Macaque Brain Atlas

No illustrations found

No illustrations available for this concept.

Species With The Structure
Equivalent By Human Macaque Rat Mouse
Topology Has The Structure Relevant Data Not Located Relevant Data Not Located Relevant Data Not Located

Showing 5 record(s)

Basis:

Topology

Has Equivalent:

Yes

Their Name:

pyriform area (Crosby)

Source:

Crosby-1962

Basis:

Topology

Has Equivalent:

Yes

Their Name:

uncus

Basis:

Topology

Has Equivalent:

Yes

Their Name:

Uncus

Source:

Nomina-1983

Basis:

Topology

Has Equivalent:

Yes

Their Name:

uncus hippocampi

Basis:

Topology

Has Equivalent:

Yes

Their Name:

Uncus hippocampi

Source:

Mai-1997

No models found

No models available for this concept.