Cerebellum

Question 1

Main areas of Cerebellum that can incur a lesion

Answer 1

Vermis
Lateral Hemisphere
Flocculonodular Lobe

Question 2

4 pathways of the Cerebellum

Answer 2

Spinocerebellar (inferior peduncle carries proprioceptive info in from the spinal cord)

Corticopontocerebellar (middle peduncle carries in from the motor cortex)

Cerebellothalamic (superior peduncle)

Vestibulocerebellar tract

Question 3

What side will a cerebellar lesion cause findings in?

Answer 3

ipsilateral

Question 4

cerebellar tract associated with proprioception

Answer 4

Spinocerebellar

Question 5

cerebellar tract associated with intention to move

Answer 5

corticopontocerebellar

Question 6

cerebellar tract associated with motor

Answer 6

cerebellothalamic (deep nuclei–>purkinje–>cerebellothalamic tract–>Ventrolateral thalamus–>motor cortex

Question 7

Course of Vestibulocerebellar tract?

Answer 7

vestibular nuclei–>flocculonodular lobe–>vestibular nuclei–>CN VI (damage causes nystagmus as well as truncal ataxa)

Question 8

Deep nuclei of the cerebellum

Answer 8

Lateral to medial: (DegF)

Dentate
Emboliform
Globose
Fastigial

Question 9

What is the only output via the superior cerebellar peduncle to the contralateral cortex

Answer 9

Inhibitory purkinje neurons to the deep nuclei out the superior peduncles to the contralateral cortex

Question 10

Histological layers of the cerebellum

Answer 10

Molecular–>Purkinje–>Granule–>White

Question 11

Ipsilateral gait ataxia would be lesion to

Answer 11

Vermis

Question 12

ipsilateral limb ataxia, intention tremor, dysmetria (can’t touch doctor’s hand), and dysdiadochokinesia a lesion to what cerebellar area?

Answer 12

Hemisphere

Question 13

ipsilateral gait ataxia along with nystagmus could be a lesion to what area of the cerebellum

Answer 13

Flocculonodular lobe