Cerebellum (new)

Question 1

Cerebellum

Answer 1

Receives inputs of almost all sensory modalities

*** critical role in motor control (rate, range, force, direction)

Question 2

primary fissure

Answer 2

separates anterior lobe from posterior lobe

Question 3

posterolateral fissure

Answer 3

separates flocculonodular lobe from rest

Question 4

Spinocerebellum

Answer 4

receives proprioceptive from all the body parts through spinal cord

smooths and coordinates movement by comparing plan with movement

Question 5

Vermis

Answer 5

Controls posture (axial/proximal limbs)

Question 6

Paravermis

Answer 6

Skilled voluntary movements

Question 7

Vestibulocerebellum

Answer 7

Concerned with equilibrium and learning induced changes in vestibulo-ocular reflex

Question 8

Cerebrocerebellum

Answer 8

Involved in planning and programming of the movements as it interacts with the cortex
(thinking)

Question 9

purkinje cells

Answer 9

molecular layer and purkinje layer

GABA (inhibitory)

Question 10

granule cells

Answer 10

granule cell layer and molecular layer

Glutamate (excitatory)

Question 11

parallel fibers

Answer 11

molecular layer

Glutamate (excitatory)

Question 12

mossy fibers

Answer 12

terminate in granule layer

Glutamate (excitatory)

Question 13

climbing fibers

Answer 13

in inferior olivary nucleus

terminate in granule layer and molecular layer

Aspartate (excitatory)

Question 14

• Charcot’s neurological triad

Answer 14

nystagmus
intention tremor
scanning speech

Question 15

Cerebellum Disorders

Answer 15

*** hypotonia

Inability to carry out long-term adjustment in motor response

Defect in vestibulo-ocular reflex leads to pathological nystagmus

Question 16

Romberg’s test

Answer 16

Positive:
sway or falling while EYES CLOSED

-> cerebellar lesion if unable to maintain stability with eyes open