1. The basal ganglia
The basal ganglia are a group of structures found deep within the cerebral hemispheres and the brainstem that include the caudate, putamen, globus pallidus, substantia nigra, and subthalamic nucleus
2. Further introdution
The caudate and putamen are often referred to collectively as the striatum, and the globus pallidus and substantia nigra are each made up of multiple nuclei.