Preferred Name

lateral globus pallidus

Synonyms

pars lateralis globi pallidi medialis

pallidus II

lateral segment of globus pallidus

globus pallidus externus

lateral pallidal segment

lateral part of globus pallidus

external part of globus pallidus

globus pallidus lateralis

external globus pallidus

lateral pallidum

globus pallidus, lateral segment

globus pallidus external segment

globus pallidus extermal segment

external pallidum

globus pallidus, lateral part

globus pallidus, external segment

lateral division of globus pallidus

globus pallidus lateral part

globus pallidus (rat)

pallidum dorsal region external segment

globus pallidus lateral segment

globus pallidus, pars externa

nucleus lateralis globi pallidi

lateral segment of the globus pallidus

pallidum I

Definitions

The more lateral of the two segments of the [globus pallidus](http://knowledge-space.org/wiki/UBERON:0001875), abutting the putamen laterally in primates and the medial globus pallidus medially. It is also known as the external segment of the globus pallidus. It is distinguished from the [medial (internal) segment of the globus pallidus](http://knowledge-space.org/wiki/UBERON:0002477) by intense staining for enkephalin, due to a heavy projection from enkephalin-containing striatal medium spiny neurons ([DiFiacco et al., 1982](https://www.ncbi.nlm.nih.gov/pubmed/6275943)). The external segment of the globus pallidus is also distinguished by its efferent projections to the subthalamic nucleus, as opposed to the thalamus and substantia nigra. It is considered an integral part of the indiect pathway through the basal ganglia, in a model of basal ganglia circuitry first proposed by Albin and colleagues ([1989](https://www.ncbi.nlm.nih.gov/pubmed/2479133)). ## Delineations -Allen Mouse Brain Atlas (MBA): [Globus pallidus, external segment](http://knowledge-space.org/wiki/MBA:1022) The more lateral of the two segments of the globus pallidus, abutting the putamen.

ID

http://purl.obolibrary.org/obo/UBERON_0002476

database_cross_reference

Wikipedia:Lateral_globus_pallidus

neuronames:232

SCTID:361560008

EHDAA2:0004462

BTO:0002247

BIRNLEX:1610

EMAPA:37638

UMLS:C0262267

BAMS:EGP

BAMS:GPe

BAMS:GPl

BAMS:LGP

FMA:61839

HBA:12897

MA:0002767

MBA:1022

PBA:10099

definition

The more lateral of the two segments of the [globus pallidus](http://knowledge-space.org/wiki/UBERON:0001875), abutting the putamen laterally in primates and the medial globus pallidus medially. It is also known as the external segment of the globus pallidus. It is distinguished from the [medial (internal) segment of the globus pallidus](http://knowledge-space.org/wiki/UBERON:0002477) by intense staining for enkephalin, due to a heavy projection from enkephalin-containing striatal medium spiny neurons ([DiFiacco et al., 1982](https://www.ncbi.nlm.nih.gov/pubmed/6275943)). The external segment of the globus pallidus is also distinguished by its efferent projections to the subthalamic nucleus, as opposed to the thalamus and substantia nigra. It is considered an integral part of the indiect pathway through the basal ganglia, in a model of basal ganglia circuitry first proposed by Albin and colleagues ([1989](https://www.ncbi.nlm.nih.gov/pubmed/2479133)). ## Delineations -Allen Mouse Brain Atlas (MBA): [Globus pallidus, external segment](http://knowledge-space.org/wiki/MBA:1022)

delineatedBy

http://api.brain-map.org/api/v2/data/Structure/1022

depiction

https://upload.wikimedia.org/wikipedia/commons/e/ee/Brain_structure.gif

external_definition

The lateral globus pallidus (or external, GPe) receives a strong glutamatergic projection from the subthalamic nucleus. The two form a particular system: a coupled pacemaker. The axons of the external globus pallidum go essentially to the subthalamic nucleus. They go also to other elements of the basal ganglia system, the striatum, the substantia nigra pars reticulata, and the internal globus pallidus, where they release the neurotransmitter GABA. GPe is particular in comparison to the other elements of the set by the fact that it does not work as an output base of the basal ganglia (not sending axons to the thalamus) but as the main regulator of the basal ganglia system. It is sometimes used as a target for deep brain stimulation as a treatment for Parkinson's disease. [WP,unvetted][Wikipedia:Lateral_globus_pallidus].

has exact synonym

pars lateralis globi pallidi medialis

pallidus II

lateral segment of globus pallidus

globus pallidus externus

lateral pallidal segment

lateral part of globus pallidus

external part of globus pallidus

globus pallidus lateralis

external globus pallidus

lateral pallidum

globus pallidus, lateral segment

globus pallidus external segment

globus pallidus extermal segment

external pallidum

has_obo_namespace

uberon

has_related_synonym

globus pallidus, lateral part

globus pallidus, external segment

lateral division of globus pallidus

globus pallidus lateral part

globus pallidus (rat)

pallidum dorsal region external segment

globus pallidus lateral segment

globus pallidus, pars externa

nucleus lateralis globi pallidi

lateral segment of the globus pallidus

pallidum I

id

UBERON:0002476

in_subset

http://purl.obolibrary.org/obo/uberon/core#human_reference_atlas

http://purl.obolibrary.org/obo/uberon/core#uberon_slim

label

lateral globus pallidus

notation

UBERON:0002476

part_of

http://purl.obolibrary.org/obo/UBERON_0001875

prefLabel

lateral globus pallidus

present_in_taxon

http://purl.obolibrary.org/obo/NCBITaxon_9606

treeView

http://purl.obolibrary.org/obo/UBERON_0001875

mutually_spatially_disjoint_with

http://purl.obolibrary.org/obo/UBERON_0002477

disjointWith

http://purl.obolibrary.org/obo/UBERON_0002477

subClassOf

http://purl.obolibrary.org/obo/UBERON_0005401

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