Cerebellum

Question 0

Fibers entering cerebellum through inferior cerebellar peduncle (5)

Answer 0

Dorsal spinocerebellar fibers (ipsi)
Cuneocerebellar fibers (ipsi)
Olivocerebellar fibers (contra) 
Vestibulocerebellar fibers (ipsi)
Reticulocerebellar fibers (ipsi)

Question 1

3 primary functions of cerebellum

Answer 1

1. Sequence events associated w/ given motor response
2. Maintain upright posture
3. Maintain muscle tone

Question 2

Only climbing fibers

Answer 2

Olivocerebellar fibers (contra)

Question 3

Fibers entering cerebellum through middle cerebellar peduncle

Answer 3

Pontocerebellar fibers (contra)

Question 4

Fibers entering cerebellum through superior cerebellar peduncle

Answer 4

Ventral spinocerebellar fibers (ipsi)

Question 5

Deep cerebellar nuclei (4)

Answer 5

Dentate
Emboliform
Globose
Fastigial

“Don’t Eat Greasy Food” lateral –> medial

Question 6

____ projects to (ipsi/contralateral) vestibular and reticular nuclei

Answer 6

Fastigial nucleus

Ipsilateral

Question 7

____ projects to (ipsi/contralateral) red nucleus

Answer 7

Interposed nuclei = globose + emboliform nucleus

Contralateral

Question 8

____ projects to (ipsi/contralateral) ventral lateral nucleus of thalamus

Answer 8

Dentate nucleus

Contralateral

Question 9

Midline lesion of cerebellum will cause ____

Answer 9

truncal ataxia

Question 10

All cerebellar syndromes cause (ipsi/contralateral) signs.

Answer 10

Ipsilateral

Question 11

Paravermal lesions to cerebellum will cause ___

Answer 11

Limb ataxia

Question 12

Hemisphere lesions will cause ____

Answer 12

deficits in speech, learning, detecting eros in performance

Question 13

Flocculonodular lesions will cause ____

Answer 13

deficits in visual tracking and oculomotor control
Integration of vestibular information for eye and head position
Control of axial muscles for balance

Question 14

Midline cerebellar syndrome signs (2)

Answer 14

Truncal ataxia: drunken sailor gait

Nystagmus

Question 15

Paravermal cerebellar lesions (8)

Answer 15

Limb ataxia
Volitional tremor: course tremor during moving
Dysmetria: inability to estimate range of movement
Dyssynergia: uneven and jerky movement
Adiadochokinesia: inability to perform rapid successive movements
Muscular hypotonia
Dysarthria: slurred speech
Nystagmus

Question 16

Functions of vermis and paravermis (2)

Answer 16

Muscle tone, posture

Execution of trunk and limb movements

Question 17

Functions of lateral hemispheres

Answer 17

Planning
Initiation
Timing of movements
Memory, language

Question 18

Flocculonodular lobe functions

Answer 18

Balance

Eye movements

Question 19

Axons in the superior cerebellar peduncle arising from deep cerebellar nuclei form ____tract

Answer 19

dentato-rubro-thalamic