RHSC 420 FINAL EXAM QUESTIONS WITH REVISED ANSWERS
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Course
RHSC 420
Institution
RHSC 420
RHSC 420 FINAL EXAM QUESTIONS WITH REVISED ANSWERS
Where does the posterior cerebral artery supply? - Answer-occipital lobe
Where does the anterior cerebral artery supply blood to? - Answer-Frontal lobe and more medial/middle of the brain rather than the outside (which is more MCA)
In terms ...
RHSC 420 FINAL EXAM QUESTIONS
WITH REVISED ANSWERS
Where does the posterior cerebral artery supply? - Answer-occipital lobe
Where does the anterior cerebral artery supply blood to? - Answer-Frontal lobe and
more medial/middle of the brain rather than the outside (which is more MCA)
In terms of the motor homonculus, what parts of the body does the ACA supply in the
brain? What would happen with a stroke to the ACA? - Answer-Toes, knees, hips, trunk
Lower body paralysis/numbness
In terms of the motor homonculus, what parts of the body does the MCA supply in the
brain? What would happen with a stroke to the MCA? - Answer-shoulder, arm, elbow,
wrist, hand, fingers, face
upper body and face paralysis and numbness
What is the gross anatomy of the cerebellum? (3) - Answer-3 lobes, 3 cerebellar
peduncles and 3 functional areas
What is the function of the cerebellum? (4) - Answer-1. maintenance of balance and
posture
2. coordination of fine voluntary movements
3. motor learning
4. cognitive functions (skilled manipulation of mental concepts)
What are the lobes of cerebellum? - Answer-1. Anterior
2. Posterior
3. Flocculonodular
What are the three cerebellar peduncles? - Answer-1. Superior
2. Middle
3. Inferior
Be sure to identify the primary fissure/sulcus on the cerebellum. - Answer--
What are the three functional areas of the cerebellum and what are their roles? -
Answer-Spinocerebellum - synergistic movement of extremities
Vestibulocerebellum - trunk control
Cerebrocerebellum - coordination of intricate and complex movements
Where does the cerebellum get vestibular information from? Through what tract? -
Answer-Afferents from the vestibular nuclei in the brainstem.
, Vestibulocerebellar tract through the inferior cerebellar peduncle
What tract does the cerebellum get proprioceptive information from? - Answer-Posterior
spinocerebellar tract through the inferior cerebellar peduncle
Where does the cerebellum get cortical information from? - Answer-Pontocerebellar
tract through the middle cerebellar peduncle
Outflow from the cerebellum is via the ________ __________ __________. - Answer-
Deep cerebellar nuclei
T/F - cerebellar function is a feed-backward mechanism. - Answer-FALSE - its a feed-
forward mechanism
Predicts outcomes of our movement of external objects, based on associative learning
from past experiences
Why can't you tickle yourself? - Answer-Projections to and from the cerebellum predict
movement and the sensory consequence of that movement.
What is the result of a lesion in the flocculonodular lobe? - Answer-Affects the
vestibulocerebellum
Inability to stabilize or balance axial musculature, resulting in truncal ataxia.
Nystagmus
What is the result of a lesion to the anterior lobe of the cerebellum? - Answer-Affects the
spinocerebellum
Affects fine-tuning of ongoing movement patterns and gait ataxia (friedreich atacia)
What is the result of a lesion to the neocerebellum? - Answer-Affects the
cerebrocerebellum
Problems with fine coordination of movement
intention tremors, dysmetria
T/F - ethanol is highly toxic to the cerebellum and is not reversible in its effects. -
Answer-FALSE - it's usually reversible
T/F - the cerebellum plays an important role in cognition and emotion regulation. -
Answer-TRUE
T/F - there is structural cerebellar abnormalities in children with ADHD. - Answer-TRUE
What are the 5 structures of the basal ganglia? - Answer-1. caudate nucleus
2. putamen
3. globus pallidus
4. subthalamic nucleus
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