Cerebellar Flashcards

1
Q

What is the output from the vestibular apparatus (vestibulocerebellum)

A

Eye movements, balance, equilibrium

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2
Q

What 2 impairments can occur if the vestibular apparatus is affected?

A

Nystagmus and trunk ataxia

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3
Q

What type of info is sensed in the spinocerebellum?

A

-somatosensory
-visual, auditory, vestibular

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4
Q

What is the output of the spinocerebellum

A

Medial and lateral upper motor neurons

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5
Q

What two impairments can occur from the spinocerebellum

A

Ataxic gait and limb ataxia

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6
Q

What structure collects information in the cerebrocerebellum

A

Cerebral cortex

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7
Q

What outputs occur from the cerebrocerebellum? Impairments?

A

-motor and premotor cortex
-decreased coordination of fine finger movements

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8
Q

What structures are affected by spinocerebellar ataxia?

A

Cerebellum, brain stem and SC

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9
Q

S/S of spinocerebellar ataxia

A

-ataxia
-in coordination
-slow saccade
-optic atrophy
-dysarthria
-balance deficit
-fall, tremor
-myoclonus
-nystagmus

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10
Q

What do pts with cerebellar atrophy not complain of

A

Dizziness, vertigo, hearing loss

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11
Q

Symps of cerebellar atrophy

A

-balance deficits
-vision impairment
-slow gait
-tremor
-decreased endurance

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12
Q

What is hypermetria

A

-underestimate movement
-start slow, fast, over shoot

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13
Q

What is hypometria

A

-overestimate of movement
-start fast, slow, undershoot

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14
Q

Cerebellar disorders - effects on vision

A

-gaze evoked nystagmus
-impaired VOR adaptation ability
-decreased motor control of eye movements (ocular dysmetria)
-blurred vision or diplopia

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15
Q

Loss movement control in what 3 body parts

A

Eyes, trunk, extremities

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16
Q

What is dyssynergia

A

Inability to perform multi-jt movement smoothly

17
Q

S/S of generalized weakness and hypotonicity

A

-poor posture
-c/o heaviness
-excessive effort for simple tasks
-early onset fatigue

18
Q

S/S loss postural control

A

-decreased visual, vestibular, somat input
-gait ataxia

19
Q

Gaze stability exercises

A

-VOR
-imagined targets
-target ex w/ or w/o head movement

20
Q

Freckle ex’s LE and UE

A

LE: heel to shin, seated hip ABD/ADD, walk along strip

UE: elbow ext/flex, ext/flex simultaneous elbows, reach targets on wall