<prompt> The structure which is NOT a component of basal gangliaCaudate of basal gangliaPutamenGlobus pallidusThalamus  <response>: Anatomically, basal ganglia include corpus striatum claustrum amygdaloid body Corpus striatum includes caudate nucleus, globus Pallidus, putamen. Functionally, basal ganglia also include substantia nigra and subthalamus. Ref: Vishram Singh textbook of clinical neuroanatomy, second edition pg-154 