Neuro Review 3/31

What do you recall about the cerebellum? Think structure and function.  

Select the pairs that are correctly matched:  

• Lateral zone: fastigial nucleus: anterior and posterior lobes, nodulus  

• Intermediate zone: interposed nuclei: anterior and posterior lobes 

• Medial (Vermal) zone: fastigial nuclei: anterior and posterior lobes, nodulus  

• Medial (vermal) zone: interposed nuclei: anterior and posterior lobes, nodulus  

• Lateral zone: dentate nucleus: anterior and posterior lobes, flocculus  

Select the statements that are true of the inferior peduncle:  

• Only peduncle that carries afferent and efferent projections  

• Carries afferent information about the motor plan via the pontine nucleus  

• Carries afferent information about head and body position via the vestibular nuclei  

• Carries efferent information to modulate upper motor neurons, specifically to the vestibular nuclei, reticular formation, and red nucleus  

• Carries efferent information to modulate upper motor neurons, specifically to the contralateral cerebral cortex  

Select the statements that are true of the vestibulocerebellum:  

• Plays a role in modulating motor plans for highly skilled movements  

• Plays a role in modulating motor commands to eye muscles and muscles that maintain posture and balance  

• Floculonodular lobe outputs to the ipsilateral vestibular nuclei directly and fastigial nuclei  

• Fastigial nucleus outputs to the unilateral vestibular nuclei and reticular formation  

What are the two sources (fiber types) of cerebellar input?  

You ask your patient to rapidly supinate and pronate their forearm and they cannot complete the action. How would you describe this?  

• Dysmetria  

• Titubation  

• Dysdiadochokinesia  

• Dysarthria  

• Intention tremor  

Damage to the right cerebellum will present with clinical signs on which side of the body?  

• Left

• Right

List the types of voluntary eye movements

The Edinger-Westphal nucleus is associated with which visual functions? (Select all) 

• Lens accommodation

• Pupil dilation

• Pupil constriction

• saccadic movements

• Smooth pursuits

You perform a pupillary light reflex test on your patient, shining a light into their right eye. Their left pupil constricts, but their right pupil does not change. Where do you suspect there is damage in the reflex arc?

• Right optic nerve 

• Right optic tract

• Right oculomotor nucleus 

• Left oculomotor nucleus