Cerebellum Flashcards
What structure connects the cerebellum with the brain stem?
Peduncles
What are the main effector neurons of the cerebellum?
Purkinje cells
On what side of the body does the cerebellum modulate movement?
The cerebellum receives information from the contralateral motor cortex to modulate movement on the ipsilateral side of the body.
What is the function of the deep cerebellar nuclei?
Transmits information on how to modulate movement to the brainstem and cortex
From which side of the body does the cerebellum receive sensory information?
Ipsilateral side
What is the effect of GABA release by the cerebellar cortex onto the deep cerebellar nuclei?
Stimulates modulation of movement
What structure connects the two cerebellar hemispheres?
Vermis
What cerebellar lobe functions in balance?
Flocculondular lobe
What is the function of the lateral zone of the posterior lobe?
Motor planning and control
What functional subdivision of the cerebellum compares intended movement with actual movement and coordinates adjustments?
Spinocerebellum
What functional subdivision of the cerebellum evaluates sensory information?
Cerebrocerebellum
What cerebellar nucleus functions in balance and gait?
Fastigial nucleus
What is the function of the interposed nucleus?
Posture, limb movement, and balance
What cerebellar nucleus functions in motor planning?
Dentate nucleus
What is the difference between mossy and climbing fibers with regard to their target structures?
Mossy fibers synapse on granular cells that then connect with Purkinje cells in the molecular layer. Climbing fibers carry information directly to Purkinje cells.
