Basal Ganglia (Lecture 11)
excite
does the sensor association inhibit of excite the caudate and putamen?
a
Dopamine a) Inhibits the indirect pathway and facilitates the direct pathway b) Acts directly on the lentiform neurons c) Is produced in medium spiny cells d) Facilitates D2 receptor activity e) Tonically inhibits motor thalamus
b
Glutamate is the neurotransmitter used by this basal ganglia nucleus a) globus pallidus external b) subthalamic nucleus c) putamen d) globus pallidus internal e) caudate
d
The striatum comprises a) putamen + subthalamic nucleus b) substantia nigra pars reticulata + substantia nigra pars compacta c) globus pallidus internal + globus pallidus external d) caudate + putamen e) putamen & globus pallidus
d
The thalamus is under tonic inhibition from this basal ganglia nucleus a) Globus pallidus externa b) Putamen c) Subthalamic nucleus d) Globus pallidus interna e) Substantia nigra
b
This basal ganglia nucleus lies medial to the external capsule a) globus pallidus external b) putamen c) subthalamic nucleus d) caudate e) globus pallidus internal
c
This is a sign of Parkinson's disease a) dystonia b) athetosis c) bradykinesia d) intentional tremor e) ballism
d
This nucleus forms the lateral wall of the lateral ventricle a) globus pallidus internal b) putamen c) globus pallidus external d) caudate e) subthalamic nucleus
d
Tonic inhibitory actions of the GPi are increased by excitarory input from: a) substantia nigra b) globus pallidus internal c) globus pallidus external d) subthalamic nucleus
inhibitory
are the globus pallidus (int & ext) inhibitory or excitatory?
a
If you can see the lateral ventricle you can see the? a) caudate nucleus b) subthalamic nucleus c) substantia nigra d) nucleus accumbers
b
Medium spiny neurons are found in the a) motor cortex b) striatum c) subthalamic nucleus d) globus pallidus e) substantia nigra
a, d
Name two brain sites where deep brain stimulation probes can be inserted in Parkinson's disease a) substantia nigra b) subthalamic nucleus c) putamen d) globus pallidus interna e) striatum
d
The posterior limb of the internal capsule separates which nuclei of the basal ganglia motor loop? a) putamen & globus pallidus b) thalamus & subthalamus c) caudate & putamen d) globus pallidus & thalamus e) substantia nigra and subthalamus
a
where does the caudate nucleus get its input from? a) motor cortex & substantia nigra b) limbic and midbrain c) globus pallidus d) striatum
c
which nuclei are key output nuclei? a) caudate putamen b) nucleus accumbers c) subthalamic nucleus & globus pallidus (int & ext)
