Cerebellar Dysfunction Flashcards
1
Q
Vestibulocerebellum
A
- Coordinates eye and head movement for gaze stabilization and coordinated movement (smooth pursuit)
- Coordinates vestibulospinal responses
2
Q
Spinocerebellum
A
- Dynamic control of movements of trunk (vermal) and limbs (paravermal)
3
Q
Cerebrocerebellum (lateral portion of anterior and posterior lobes)
A
- Motor planning for anticipatory control
- Schema of body
- Fine motor activities
4
Q
Damage to Flocculonodular lobe and vermis
A
- Disturbances of equilibrium of trunk and head-eye movement difficulties
5
Q
Damage to more lateral regions
A
- Hypotonia
- Ataxia
- General loss of coordination
- Dysmetria
- Intention tremor
- Dysdiadochokinesia
- Movement decomposition
- Scanning speech & dysarthria
- Impaired motor learning skills
6
Q
What deficit can occur anywhere in cerebellum?
A
Nystagmus
7
Q
Ipsilateral v. bilateral/contralateral deficits
A
- Ipsilateral - lateral regions
- Contralateral/bilateral - intermediate areas
8
Q
Common pathologies of Cb
A
- Tumor
- Acoustic Schwannoma
- Trauma
- Vascular
- Toxins
- Infections
- MS
- Degenerative disorders
- Cancer
9
Q
Non-inherited ataxia causes
A
- Vascular
- Brain lesion/tumor
- Toxins
- Infections
- Paraneoplastic sydromes
- MSA
- Vitamin E deficiency
- MS
10
Q
Inherited ataxia causes
A
- Friedrich’s
- Spinocerebellar
- Episodic
- Fragile X tremor
- Dentatorubo-pallidoluysian atrophy
- Vitamin E deficiency
- Wilson’s disease
- Metabolic disorder
11
Q
Types of ataxia
A
- Cerebellar, vestibular, sensory
