Globus pallidus
NervousOrgansHeadLeft and right
View left in 3D View right in 3D
- What it is
- The inner, wedge-shaped part of the lentiform nucleus pointing toward the internal capsule; it looks pale because of the many myelinated fibres crossing it.
- Function
- The main output station of the basal ganglia: its inhibitory signals to the thalamus act as a brake on movement that the striatum releases selectively.
- Size
- About 2 cm long and 1 cm across at its base
- Clinical note
- Deep brain stimulation of the internal pallidum relieves dystonia and levodopa-induced dyskinesia in Parkinson disease.