The Motor System refers to systems of action.
Readings: BCN 6,8; PN Ch 4; Web links are included in the outline below:
Motor
and Premotor Cortex
Supplementary Motor Control Areas
Cerebellum
Basal Ganglia
The Basal Motor System (Basal Ganglia)
Caudate Nucleus, Globus Pallidus and Putamen
All involved in motor control with the cerebellum, cortex, thalamic nucleus
subthalamic nucleus,substantia nigra, red nucleus and reticular formation
Pathology of lesions of Basal Motor System
Chorea: quick jerking movements
Athetosis: slow writhing movements
Dystonia: long sustaining twisting movements
Hemiballismus: wild, flinging movements
Parkinsonism: pill rolling tremor (5-6 cycles/sec) of fingers at rest,
lead-pipe rigidity and akinesia
