Basal Ganglia

Question 1

What is the function of the basal ganglia

Answer 1

It is part of a basic feedback circuit, receiving information from several sources including the cerebral cortex. The basal ganglia feeds this information back to the cortex, via the thalamus. In doing so, it acts to modulate and refine cortical activity – such as that controlling descending motor pathways.

Question 2

state the function of the input , intrinsic, and output nuclei

Answer 2

Input nuclei receive information, which is then relayed to intrinsic nuclei for processing, and further passed to output nuclei:

Question 3

List the input nuclei

Answer 3

Caudate nucleus and putamen (neostriatum)
nucleus accumbens (Acb), which is part of a functionally separate domain named ventral striatum.

Question 4

Where is the neostriatum found

Answer 4

telencephalon