globus pallidus

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Related to globus pallidus: globus hystericus, basal ganglia


 [glo´bus] (pl. glo´bi) (L.)
1. sphere.
2. a spherical structure.
globus hyste´ricus the subjective sensation of a lump in the throat.
globus pal´lidus the smaller and more medial part of the lentiform nucleus of the brain; it is divided into two parts, lateral and medial, by the medial medullary lamina.

glo·bus pal·'li·dus

the inner and lighter gray portion of the lentiform nucleus; composed of a lateral segment (globus pallidus lateralis [TA]) and a medial segment (globus pallidus medialis [TA]) separated by a vertically oriented lamina of fibers, the lamina medullaris medialis [TA] (medial medullary lamina [TA]). The medial segment may also be incompletely divided into a lateral part [TA] (pars laterallis [TA]) and a medial part [TA] (pars medialis [TA]) by the accessory medullary lamina [TA] (lamina medullaris accessoria [TA]).
See also: paleostriatum.
Synonym(s): pallidum [TA], pale globe

globus pallidus

(glō′bəs păl′ĭ-dəs)
The inner and lighter gray portion of the lentiform nucleus of the brain. Also called pallidum.

globus pallidus

Etymology: L, small ball, pale
the smaller and more medial part of the lentiform nucleus of the brain, separated from the putamen by the lateral medullary lamina and divided into external and internal portions closely connected to the striatum, thalamus, and mesencephalon.

glo·bus pal·li·dus

(glō'bŭs pal'i-dŭs) [TA]
The inner and lighter gray portion of the lentiform nucleus.
See also: paleostriatum
Synonym(s): pallidum.

Globus pallidus

A pale-colored spherical structure within the basal ganglia. Deep brain stimulation of this area is helpful in controlling the chorea of some patients with HD.
Mentioned in: Huntington Disease


pl. globi [L.] a sphere or ball; a spherical mass.

globus pallidus
the smaller and more medial part of the lentiform nucleus of the brain.
References in periodicals archive ?
Chronic stimulation of the globus pallidus internus for control of primary generalized dystonia.
Therefore, DBS stimulation of the globus pallidus or thalamus, which are positioned in this loop, could bidirectionally regulate abnormal impulses in the striatum and thalamus.
The somatosensory and motor cortices, the intralaminar nucleus of the thalamus and the substantianigra, project to the putamen and this, in turn, projects in motor and promotor areas of the cortex through the globus pallidus and the thalamus (27).
Long term continuous deep brain stimulation of the internal globus pallidus induces lasting neural reorganization in the motor system.
The overall effect of dopamine is to decrease activity in the globus pallidus, which in turn stimulates the thalamus and therefore promotes movement (Clough et al 2007).
TORONTO--Motor function in Parkinson's disease patients improved by a similar amount after 2 years of bilateral deep brain stimulation of the sub-thalamic nucleus or globus pallidus in the first blinded, randomized trial to compare outcomes with the two targets.
BMT patients received optimized medical therapy, and DBS patients were further randomized to bilateral stimulation of the subthalamic nucleus (STN) or globus pallidus interna (GPi).
Applications include thalmic and globus pallidus deep brain stimulation for Parkinson's and other tremor disorders, dystonia, postural instability and gait disorders.
Increasing evidence suggests that the intense MRI signals in the globus pallidus of cirrhotic alcoholics are caused by deposits of a paramagnetic substance, probably manganese, in that region (Lockwood et al.
A reduction in GABA and enkephalin input to the external globus pallidus is thought to cause hyperactivity of the external globus pallidus and inhibition of the subthalamic nucleus.