Flashcards in Basal Ganglia Deck (12):
to suppress unwanted cortical activity
to facilitate wanted cortical activity
inability to suppress unwanted motor activity (chorea, myclonus, athetosis), inability to initiate movement (akinesia), rigidity (hypertonia NOT velocity dependent), tremors (resting)
What makes up the striatum ?
caudate nucleus and putamen nucleus
What are the mescencephalic portions of the basal ganglia?
substantial nigra (pars compacta and pars reticulata)
Bounded medially to the ventricles and laterally to the internal capsule
Lies lateral to the internal capsule, flattended lens-shaped nucleus, lateral to it is the external capsule
Out of the caudate and putamen, which receives input from the motor cortex and which receives input from the non-motor areas of the cortex
made up of the pars interna and the pars externa
major effect nucleus of globus pallidus
internal relay nucleus of globus pallidus
sends input to the subthalamic nucleus