The Cerebellum Flashcards
Fill in the blank. To accomplish functions of the cerebellum, it has reciprocal interactions with _____ regions of the CNS.
motor
Fill in the blank. To accomplish functions of the cerebellum, it has integration of ______ with motor signals.
sensation
TRUE or FALSE:
Cerebellar lesion or loss of function DOES NOT lead to paralysis.
true
TRUE or FALSE:
Cerebellar lesion leads to inability to move in any manner.
FALSE: Cerebellar lesion leads to inability to move in a smooth and coordinated manner.
INPUT or OUTPUT function:
inferior peduncle
input
INPUT or OUTPUT function:
middle peduncle
input
INPUT or OUTPUT function:
superior peduncle
output (primary EFFERENT)
all nuclei fibers: red nucleus, VA, VL of thalamus
Motor inputs (corticospinal and corticobulbar; spinal interneurons) provide internal feedback for intended movement. The information is related to programming and ___________ of movement.
execution
comparator function
Cerebellar disorder:
damage to hemispheres, decomposition of movement; uncoordinated
ataxia
(we watched the video of the little boy with this); slow, wide gait; tend to fall toward lesion side;
floculonodular lobe, vermal region of anterior or posterior lobe
Cerebellar disorder:
inaccurate movement of hand in space
dysmetria
Cerebellar disorder:
overshooting when asked to point to a specific place
past pointing
Cerebellar disorder:
difficulty with rapid alternating movements; test: rapid pronation & supination
dysdiadocokinesia
Cerebellar disorder:
difficulty in articulating words
dysarthria
Functions for OTs to consider (5)
- timing
- accuracy
- sequencing
- coordination
- postural stability
What to look for, to examine:
- preparation for and smoothness of movement
- motor learning
- emotion and affect
- cognitive processes (memory, language, visual spatial skills)
