Basal Ganglia Flashcards
1
Q
Nuclei of the basal ganglia
A
Striatum, Globus pallidus, Substantia nigra, Subthalamic nuclei
2
Q
Components of the striatum
A
Caudate and Putamen
3
Q
Portions of the globus pallidus
A
Internal and external portion
4
Q
Portions of the substantia nigra
A
Pars compacta and pars reticulata
5
Q
Overview of the direct pathway
A
Striatum inhibits GPi and SNr, no longer inhibit Thalamus, Cerebral cortex activated
6
Q
Overview of indirect pathway
A
Striatum inhibits GPe, no longer inhibits subthalamic nuclei, activates GPi and SNr, inhibit thalamus, no longer excite cerebral cortex
7
Q
Action of the substantia nigra pars compacta
A
Activate indirect and direct pathway
8
Q
Signs of Parkinson’s disease
A
Tremor, Hypertonia, Bradykinesia
