Cerebellum

Question 1

Function of Vermis and paravermian of ceerebellum

Answer 1

axial musculature

Question 2

Function of lateral hemispheres of cerebellum

Answer 2

limbs

Question 3

Function of flocculonodular lobe

Answer 3

maintaining balance

Question 4

Lateral hemispheres project to what nuclei?

Answer 4

dentate

Question 5

Paravermal zones project to what nuclei?

Answer 5

globose and emboliform (interpositus nuclei)

Question 6

Vermis projects to what nuclei?

Answer 6

Fastigal

Question 7

Afferents of superior cerebellar peduncle:

Answer 7

ant spinocerebellar tract

acoustic and optic info

Question 8

Afferents of middle cerebellar peduncle:

Answer 8

pontocerebellar tract

Question 9

Afferents of inferior cerebellar peduncle:

Answer 9

vestibulocerebellar tract

olivocerebellar tract

posterior spinocerebellar tract

Question 10

Efferents of superior cerebellar peduncle:

Answer 10

dentatorubrothalamic tract

dentatothalamic tract

Question 11

Efferents of inferior cerebellar peduncle:

Answer 11

cerebellovestibular tract

cerebelloolivary tract

Question 12

The dentatorubrothalamic tract and dentatothalamic tract carry info from…. to…

Answer 12

from lateral ant and post cerebellar cortices

to the thalamus&raquo_space; contralateral motor cortex

Question 13

Cells in cerebellar cortical anatomy:
Outer molecular layer =
Middle layer =
Granule layer =

Answer 13

basket and stellate cells

Purkinje cells

golgi and granule cells

Question 14

Only output neurons of cerebellar cortex

Answer 14

Purkinje cells

Question 15

Only direct input to Purkinje fibers from outside cerebellum

Answer 15

climbing fibers (from olivary nuclei)

Question 16

Cells which have an inhibitory effect on Purkinje cells?

Answer 16

stellate and basket

Question 17

Function of vestibulocerebellum?

Answer 17

coordinate eye, head, neck movements and maintain balance

Question 18

Function of spinocerebellum?

Answer 18

coordinate trunk and proximal limb movements

Question 19

Function of cerebrocerebellum?

Answer 19

coordinate fine motor planning of limbs

anticipate sensory consequences of movement

cognitive memory of motor functions

Question 20

Left cerebellum controls the (R/L) body/arm/leg

Answer 20

L

Question 21

Clinical signs of cerebellar disease?

Answer 21

• unstable gait
• jerky movements/tremor
• ataxia
• dysmetria of movement (overshoot target)
• eye mvmt disorders
• speech disorders