Cerebellum Review Flashcards
what is the blood supply of the cerebellum
Basilar - Superior Cerebellar Artery / Anterior Inferior Cerebellar Artery
vertebral - posterior inferior cerebellar artery
function of cerebellum
smooth controlled movements
equilibrium
posture
muscle tone
movement initiation
motor learning
what anatomical location is the spinocerebellum made of?
vermis and paravermis
what anatomical location is the cerebrocerebellum made of
lateral hemisphere
what anatomical location is the vestibulocerebellum made of
flocculus
nodulus
lesion to the spinocerebellum is associated with
truncal ataxia
gait ataxia
imbalance
dysarthria
cerebrocerebellum lesion is associated with
limb ataxia
impaired fine motor controls
dysarthria
hypotonia
in limb ataxia, what can be seen?
dysmetria
dysdiadochokinesia
lesion to the vestibulocerebellum is associated with
postural instability (sitting/standing)
gait abnormalities
nystagmus
- impaired VOR
how does CNS vs PNS nystagmus differ
C - pure vertical, direction changing
P - not purely vertical, direction fixed
what is the name of LE spinocerebellar pathway
posterior spinocerebellar
what is the name of UE spinocerebellar pathway
cuneocerebellar
what is asthenia
generalized mild muscle weakness
- will not lead to atrophy
what is dyssynergy
movement decomposition
how is the presentation of cerebellar ataxia different from sensory ataxia
truncal ataxia (CA)
what is the lesion location associated with cerebellar ataxia
cerebellum
spinocerebellar tracts
what is the lesion location associated with sensory ataxia
DCML
peripheral nerve
somatosensory cortex
explain joint proprioception in cerebellar ataxia vs sensory ataxia
CA - intact
SA - absent/abnormal
how does coordination testing performance differ in those with cerebellar ataxia vs sensory ataxia
CA - will not change if EO or EC
SA - improve with EO
what was the traditional approach to addressing coordination
hands on support - tactile cueing
AD for safety
weighting limbs for proprioceptive loading
movement performed slowly and reciprocally
what is the new approach to address coordination
high intensity
task specificity
VR
–> aim to improve function rather than a specific impairment