globus pallidus
Noun
Meaning
the inner pale yellow part of the lenticular nucleus
Source: WordNetSynonyms
Hypernyms
Examples
In Parkinson's disease the activity in direct pathways to interior globus pallidus decreases and activity in indirect pathways to external globus pallidus increases.
It was found that "increasing movement extent was associated with parallel increases of rCBF in bilateral basal ganglia (BG; putamen and globus pallidus) and ipsilateral cerebellum."
The direct pathway consists of two inhibitory pathways from the putamen to the substantia nigra and the internal region of the globus pallidus.
The pars compacta sends excitatory input to the striatum via D1 pathway that excites and activates the striatum, resulting in the release of GABA onto the globus pallidus to inhibit its inhibitory effects on the thalamic nucleus.
The striatum includes the caudate nucleus (top) and putamen (right) and the globus pallidus (left).
The indirect pathway consists of three inhibitory pathways that go from the putamen and caudate nucleus to the external region of the globus pallidus.