CB disorders

Question 1

what is sensation

Answer 1

perception of visual motion, may predict upcomong sensory events

Question 2

what is learning

Answer 2

adaptation is an errro driven motor leraning prodcess

Question 3

what is an acquired cerebellar pathology

Answer 3

• MS
• stroke
• arnold chiari malformation
• toxicity
• tumors
• trauma

Question 4

what is a genetic cerebellar pathology

Answer 4

• herediatry autosomal dominanet
• spinocereballar ataxias
• autosomal recessive: freiedreiches, early onset, X linked

Question 5

what is an idiopathic cereballar pathology

Answer 5

• MSA

- ILOCA

Question 6

what the most common form of hereditary ataxia

Answer 6

friedrich

but rare

Question 7

talk about friedreich ataxia

Answer 7

• symptoms begin around 5-15 years old
• 10-20 years after the first symptpoms person is confied to WC
• can become cmopletely incapacitated
• life expectency short due to heart disease

Question 8

talk about spinocereballar ataxias

Answer 8

• over 40 types
• autsoaoml dominant
• symptoms begin midlife
• slow progresive

Question 9

what are prognostic considerations

Answer 9

-type of lesion and extent

Question 10

define scanning speech/ataxic dysarthria

Answer 10

spoken words broke into separate syllables and separtes wtih a noticeable pause

Question 11

what is the blood supply to the cerebellum

Answer 11

• superior cereballar a
• anterior inferior cereballar a
• posterior inferior cereballar a
• vertebral a?

Question 12

what are the 3 layers of functional zones

Answer 12

1. cerebellar cortex superficial
2. white matter intermediate
3. nuclei deep

Question 13

what are the superficial cerebellar crotex layers

Answer 13

1. molecular- purkinje
2. purkinje- cell bodies
3. granular- granular cell bodies

Question 14

what are the white matter intermediate layers

Answer 14

1. axons of purkinje cells: inhibitory GABA

2. axons of mossy and climbing fibers

Question 15

what are the nuceli deep layers

Answer 15

1. fastigial muscles: deep in cerebellum
2. interposed nucleus: deep in cerebellum
3. dentate nucleus: deep in cerebellum
4. vestibular nuceli: brainstem pontomedullary

Question 16

what are the 3 functional zones of the cerebellum

Answer 16

1. vestibulocerebellum
2. spinocerebellum
3. cerebrocerebellum

Question 17

what are some movement abnormalities

Answer 17

1. tremor
2. hypotonia
3. dyssenergia
4. lack of check
5. movement decomposition
6. imbalance
7. imapired motor learning

Question 18

what is dysdiadochokinesia

Answer 18

deficit in coordiation agonist-antagonist muscle pairs, elicited during rapid alternating movements/rapid reversals

Question 19

what is dysmetria

Answer 19

impaired ability to scale movement distance

• can be seen in single joint and multi joint movement
• typically mutle joint movenets worsen dysmetria
• finger to nsoe test
• heel to shin test

Question 20

define lack of check

Answer 20

excessive rebound

-inability to halt movement

Question 21

define dyssyngergia

Answer 21

impairment of multi joint movements

Question 22

what are diagnosis specific scales

Answer 22

SARA
ICARS
BARS