Cerebellum Flashcards
What are the two groups of axons of the cerebellum?
Mossy and Climbing
What are the main outputs of the cerebellum?
Red Nucleus
Thalamus
Through what does information get out from the cerebellum?
Information comes out from the superior cerebellar peduncle and it is a route entirely for efferent fibers except for the VSCT which comes in through the SCP
Through what does information get into the cerebellum?
It gets into the cerebellum through the inferior and middle cerebellar peduncle. The ICP is the main route though.
What is the cerebellum the roof for?
4th Ventricle
What are the parts of the cerebellum?
Vermis
Medial Hemisphere
Lateral Hemisphere
Where do fibers from the ICP go on the cerebellum?
Floccularnodular Node
Where do fibers from the MCP go on the cerebellum?
Lateral Hemisphere
Where do fibers go from the SCP?
To the thalamus and red nucleus
Describe the pathway from the cerebrum to cerebellum through the MCP.
Cerebral Cortex -> Pons -> Synapse at Pontine Nuclei -> MCP -> Cerebellar Cortex
Describe the pathway from the inferior olive to cerebellum through the ICP.
Inferior Olive -> ICP -> Cerebellar Cortex
Other Pathways through the ICP
DSCT and CCT -> ICP -> Cerebellar Cortex
Vestibular and Cochlear Nuclei -> ICP -> Cerebellar Cortex
What is the difference between cerebral cortex damage versus cerebellar damage?
Cerebellar damage causes problems on the same side whereas cerebral damage often causes problems on the opposite side.
What results from damage to the vermis of the cerebellum?
Trunk problems
What results from damage to the hemispheres of the cerebellum?
Limb problems
What are the afferent fibers to the ICP?
Inferior olivary nucleus Vestibular nuclei Spinal cord Trigeminal nuclei Reticular formation
