Corpus striatum and Globus pallidus
Corpus striatum
Corpus striatum consists of CAUDATE NUCLEUS and PUTAMEN and initiate gross intentional movements of the body. It regulates the position of the body.It derives the name due to its straited appearance.
Globus pallidus
Most of the outflow of signals from the basal ganglia is channelled through globus pallidus en route to cortex or lower brain centres.
Globus pallidus activity is associated with tonic contractions of voluntary movements to effect discrete activities. The Globus pallidus and the putamen collectively form a structure, the Lenticular nucleus which resembles lens.