WorksheetsBasal nuclei
Total questions: 19
Worksheet time: 38mins
All of the following statements about the basal ganglia are correct EXCEPT:
The net effect of excitation of the direct pathway is to inhibit cortex.
Dopaminergic neurons of the substantia nigra signal unexpected reward or unexpected absence of reward.
The basal ganglia have both motor and cognitive functions.
The subthalamic nucleus is the origin of the only purely excitatory pathway within the basal ganglia intrinsic circuitry.
Parkinson's disease results from damage to the basal ganglia.
Select the appropriate option for Structure 3 as seen on image.
Globus pallidus
Internal capsule
Claustrum
Putamen
None of the above
Which of the following statements concerning the efferent fibers of the corpus striatum?
Many of the efferent fibers descend directly to the motor nuclei of the cranial nerves.
Some of the striatopallidal fibers have GABA as the neurotransmitter.
The striatonigral fibers pass from the red nucleus to the substantia nigra.
Many of the efferent fibers pass directly to the cerebellum.
The anterior horn cells of the spinal cord are influenced directly by the efferent fibers from the corpus striatum.
Parkinson disease is marked by a lack of which chemical in the brain?
Serotonin
GABA
Dopamine
Norepinephrine
None of the above
Which of the following statements concerning the basal nuclei is correct?
The caudate nucleus and the red nucleus form the neostriatum (striatum).
The head of the caudate nucleus is connected to the putamen.
The tegmentum of the midbrain forms part of the basal nuclei.
The internal capsule lies lateral to the globus pallidus
The basal nuclei are formed of white matter.
Select the appropriate option for Structure 5 as seen on image.
Claustrum
Internal capsule
External Capsule
Anterior horn of lateral ventricle
None of the above
Which of the following statements concerning the basal nuclei is correct?
The amygdaloid nucleus is connected to the caudate nucleus
The lentiform nucleus is completely divided by the external capsule into the globus pallidus and the putamen.
The claustrum does not form part of the basal nuclei.
The corpus striatum lies medial to the thalamus.
The function of the claustrum is well known.
Identify the structure highlighted by the red arrow
External medullary lamina
Caudate nucleus
Amygdaloid body
Claustrum
Which of the following statements concerning the basal nuclei is correct?
The corpus striatum is made up of the caudate nucleus and the amygdaloid nucleus.
The head of the caudate nucleus lies lateral to the internal capsule.
The insula forms part of the basal nuclei
The tail of the caudate nucleus lies in the roof of the lateral ventricle
The subthalamic nuclei are functionally closely related to the basal nuclei and are considered to be part of them.
Select the appropriate option for Structure 1 as seen on image.
Globus pallidus
Internal capsule
Claustrum
Putamen
None of the above
Which of the following statements concerning the functions of the basal nuclei (ganglia) is correct?
The corpus striatum integrates information received directly from the cerebellar cortex
The outflow of the basal nuclei is channeled through the globus pallidus to the sensory areas of the cerebral cortex, thus influencing muscular activities
The globus pallidus only influences the movements of the axial part of the body
The activities of the globus pallidus precede the activities of the motor cortex concerned with discrete movements of the hands and feet
The activities of the basal nuclei are suppressed by information received from the sensory cortex, the thalamus, and the brainstem
Which of the following statements concerning the caudate nucleus is correct?
It is divided into a head, neck, trunk, and tail.
It is an M-shaped mass of gray matter.
The body of the caudate nucleus forms part of the roof of the body of the lateral ventricle.
The head lies medial to the anterior horn of the lateral ventricle.
The tail terminates anteriorly in the amygdaloid nucleus.
Select the appropriate option for Structure 4 as seen on image.
Claustrum
Internal capsule
External Capsule
Anterior horn of lateral ventricle
None of the above
Which of the basal ganglia nuclei receive direct cortical input?
Claustrum and amygdala.
Centromedian nucleus and subthalamic nucleus.
Substantia nigra pars compacta and globus pallidus external.
Globus pallidus internal and substantia nigra pars reticulata.
Caudate and putamen.
Which of the following statements concerning the afferent cortico-striate fibers to the corpus striatum is correct?
Each part of the cerebral cortex is randomly projected to different parts of the corpus striatum.
Glutamate is not the neurotransmitter
All parts of the cerebral cortex send fibers to the caudate nucleus and putamen.
The smallest input is from the sensory-motor part of the cerebral cortex.
Most of the projections are from the cortex of the opposite side
Select the appropriate option for Structure 2 as seen on image.
Anterior horn of lateral ventricle
Internal capsule
Claustrum
Putamen
None of the above
Which of the following statements concerning the nigro-striate fibers is correct?
The neurons in the substantia nigra send axons to the putamen.
Acetylcholine is the neurotransmitter
The nigrostriate fibers are stimulatory in function.
The caudate nucleus does not receive axons from the substantia nigra.
Parkinson disease is caused by an increase in the release of dopamine within the corpus striatum
What neurodegenerative disease is associated with the degeneration of the region identified by the X
?
Parkinson's Disease
Huntington's Chorea
Sydenham's Chorea
Ataxia
Select the appropriate option for Structure 6 as seen on image.
Claustrum
Internal capsule
External Capsule
Anterior horn of lateral ventricle
None of the above
