Science Quiz / Cerebellum and Basal Ganglia

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Can you name the Cerebellum and Basal Ganglia?

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QuestionAnswer
True or False: the SCP has inputs coming from the cerebral cortex
Laterality of cerebellar outputs to cortex
associated deep nucleus of the intermediate zone of the cerebellum
dysfunction of spinocerebellum characterized by uncertain starts and stops, lateral deviations, and unequal steps
Neurons from the pontine nuclei cross contralaterally in what?
slowness of movement is known as what?
associated deep nucleus of the flocculonodular lobe of the cerebellum
This portion of the cerebellum is involved in axial movement
Laterality of the corticopontine tract
D2 dopaminergic receptors act to ____ cAMP levels
nearly constant slow sinuous, writhing movements
origin of vestibulocerebellar tracts
Difficulty in visual pursuit
difficulty initiating movements is known as what?
laterality of cuneocerebellar tract
Termination of the pontocerebellar tract
True or False: there are 3 layers of Purkinje cells in the cerebellum
Cerebellar projections to the cerebrum exit via what?
associated deep nucleus of the vermis of the cerebellum
associated deep nucleus of the lateral hemispheres of the cerebellum
this disease is caused by a loss of projecting dopaminergic neurons to the striatum
violent flinging movements, usually involving entire arm
This portion of the cerebellum is involved in limb movement (intended vs actual)
D1 dopaminergic receptors act to ____ cAMP levels
Laterality of the dorsal spinocerebellar tract
This portion of the cerebellum is involved in planning, refining, and executing skilled movements
termination of vestibulocerebellar tracts
laterality of the vestibulocerebellar tract
This tract carries info for preprogramming of fine motor movements
origin of cuneocerebellar tract
QuestionAnswer
clinical term for clumsy or intermittent movements
Where do most spinal cord and brainstem afferents enter the cerebellum?
termination of the dorsal spinocerebellar tract
outputs from which nucleus are bilateral
Where do most afferents from the cerebrum enter the cerebellum?
characteristic tremor that becomes most pronounced at the end of a movement but is not present at rest
Termination of the corticopontine tract
small, quick involuntary movements of fingers, hands, and occasionally head, arms, and legs
the darkly pigmented portion of the substantia nigra
True or False: The MCP has no ouputs
this portion of the cerebellum is involved in eye movements
origin of the dorsal spinocerebellar tract
True or False: The STN is excitatory activating the GPi/ SNr by the release of glutamate
caudate and putamen are collectively known as what
which portion of the substantia nigra has modulatory effects on the striatum?
Which deep nucleus of the cerebellum projects to the vestibular nuclei and reticular formations
what tract is responsible for carrying descending information from the cortex to the pons
this disease is caused by a loss of striatal neurons
termination of olivocerebellar tract
the main efferent output to the cortex for limb motor planning, execution, and correction come from which 2 nuclei
laterality of olivocerebellar tract
termination of the cuneocerebellar tract
inability to perform rapidly alternating movements
true or false: the cells of the deep cerebellar nuclei are tonically active and the Purkinje cells act to inhibit these cells
laterality of pontocerebellar tract
Outputs via the SCP terminate where? (2 answers)
True or False: dysfunction of the spinocerebellar system leads to impaired balance or control of eye movements
small movements
patient undershoots or overshoots when trying to touch a mark
origin of olivocerebellar tract

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