RHSC420 Final Test Questions with Correct Answers
What is the function of the vestibulocerebellum ? - Answer-Feedback loops relevant in various reflex pathway
-Input: Balance
-Output: Postural adjustments
Difference b/w primary and association areas - Answer-primary: receive input with littl...
RHSC420 Final Test Questions
with Correct Answers
What is the function of the vestibulocerebellum ? - Answer-Feedback loops relevant in
various reflex pathway
-Input: Balance
-Output: Postural adjustments
Difference b/w primary and association areas - Answer-primary: receive input with little
to no meaning
association: higher order processing, integration, interpretation
Association areas in the L/R hemisphere - Answer-Tend to have asymmetric
representation in the brain
-L have different functions then the R (functional specialization)
What is the function of the thalamus? - Answer-Major relay center
-HUB: integrates cortical output, sensory input, cerebellar input, BG input
What is the motor association cortex made up of and functions? - Answer-
supplementary motor area (SMA) + premotor cortex (PMC)
Function of the PMC + lesion effect? - Answer-PMC: higher order processing,
integration
-Coordinating mm/joints, planning mov't
Lesion results in inability to coordinate multi-joint mov'ts and perform a appropriate
mov't to an external cue
Function of SMA + lesion effect? - Answer-SMA: efferents to truncal/limb mm
-bimanual coordination, coordinating complex mov'ts
Lesion: apraxia (inability to perform complex acts), deficits in bi-manual coordination
Function of the somatosensory association area + lesion effect? - Answer--
Interpretation of sensory info
-Higher level processing to understand what is happening in periphery
Lesion results in inability to interpret sensory info
-Agnosia: Lack of understanding/knowledge (ex. astereognosia - cannot identify object
placed in hand w/o vision)
, Function of the parietal association area? - Answer-Attention/awareness
-Integrates visual, somatosensory, vestibular, auditory inputs - integrates info to have
better understanding of environment
-Output to motor association area
NET: Establishes understanding of entire environment, info used to better plan and
organize mov'ts
Function of the temporal association area - Answer-Recognition
-Can lead to agnosia (ex. prosopagnosia - unable to make link b/w visual stimulus of
face and its meaning or identity)
Function of the frontal association area (premotor cortex)? - Answer-Executive function
-memory, problem solving, attention, planning, cognitive flexibility
Function of the occipital association area? - Answer-Gives meaning and interpretation
to visual info
-Dorsal/ventral pathway
Functions of the cerebellum - Answer-Feed-forward mx: predicts outcomes, prevent
errors
-Balance and proprioception
-Coordinate fine motor mov'ts
-Motor learning (adapting mov'ts)
-Cognitive functions
What are the 4 cerebellar inputs + functions? - Answer-Vestibulocerebellar: trunk
control/posture, head and body in space, vestibular reflexes
Cerebrocerebellar: Complex movements, eye mov'ts, speech, cognitive function, hand-
eye, fine motor control
Spinocerebellar: Coordination of mov'ts of extremities
What are the cerebellar outputs (tract/penducle)? - Answer-from deep cerebellar nuclei
cortex: dentarubrothalamic tract (SCP)
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