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Kines 360 > final 4.1 > Flashcards

final 4.1 Flashcards

1
Q

true or false

Premotor cortex are active after movement and play apart in planning movement

A

false, they are active PRIOR movement and play apart in planning movement

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2
Q

what are premotor neurons specific to

A

certain types of grasp

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3
Q

what does motor cortices involve

A

dynamic transformations that might compute segment dynamics from abstract hand-level plan of movement

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4
Q

Abstract task-level movement variables and muscle related variables are represented how?

A

by motor cortex activites

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5
Q

what does the Cerebrocerebellum involve

A

loops with motor cortices and probably is involved in the implementation of dynamic transformation

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6
Q

what does PMd involve

  • reaching
  • grasping
  • Bilateral Coordination and Complex Squeezing
A

reaching

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7
Q

what does PMv involve

  • reaching
  • grasping
  • Bilateral Coordination and Complex Squeezing
A

grasping

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8
Q

what does SMA involve

  • reaching
  • grasping
  • Bilateral Coordination and Complex Squeezing
A

Bilateral Coordination and Complex Squeezing

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9
Q

what are the three functional divisions of the cerebellum

A

vestibulocerebellum, spinocerebellum, cerebrocerebellum

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10
Q

what are the characteristics of Mossy Fibers

A

appraises CNS of state of the limb, body part, or cortical condition

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11
Q

what are the characteristics of Climbing Fibers

A

has very strong and specific influence on Purkinje cells

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12
Q

what does Cerebellum modify

A

ongoing motor output

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13
Q

match the following Cerebrocerebellum, Spinocerebellum, Vestibulocerebellum

  • Motor Planning
  • Balance and Eye movement
  • Motor execution
A

Cerebrocerebellum- Motor Planning
Vestibulocerebellum-Balance and Eye movement
Spinocerebellum- Motor execution

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14
Q

what does a lesion to the vestibulocerebellum result in

A

ataxic gait, poor balance, abnormal nystagmus, dysarthia (slow scanning speech)

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15
Q

what does a lesion to spinocerebellum result in if it involves the axial component

A

severe hypotonia, titubation (trunk tremor), Ataxic gait, dysarthia and involves the axial component

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16
Q

what does a lesion to spinocerebellum result in if it involves the limb component

A

Ipsilateral tremor, dysmetria, movement “decompostion”, fail heel/shin test

17
Q

what does a lesion to cerebrocerebellum result in

A

movement errors, dysdiadochokinesis, initiation delays, decomposition (unable to flex on finger without other)

18
Q

what does cerebellar disease involve

A 
Ataxia
Dysarthria
Movement delays
Tremors during voluntary movement and not during rest
Symptoms are ipsilateral to lesion
19
Q

what does ataxia involve for cerebellar disease

A
  • wide base stance and unsteady gait
  • trunk tremors
  • poor balance
  • Movement decomposition
20
Q

true or false

Input/output to/from cortex is not crossed

A

false, they are crossed

21
Q

true or false

input/output to/from spinal cord is crossed

A

false, they are not crossed

22
Q

what is Huntingtons disease

A

degeneration of Striatal neurons ( Caudate and Putament)

23
Q

what are the symptoms for Pakinsons disease

A

general reduction in movement, bradykinesia, difficulty initiating movements, micrographic, general reduction in movement quantity and amplitude

24
Q

what are the symptoms for Huntingtons disease

A

involuntary movements, chorea (abrupt and violent movements of limbs and face)

25
Q

what is a lesion to the sub thalamus called and what are the symptoms

A

hemiballismus

symptoms include involuntary violent movements

26
Q

what does Athetosis result in

A

slow “writihing” movements of the limbs

27
Q

list the different types of basal ganglia diseases

A

Parkinson’s
Huntingtons Chorea
lesion to Subthalamus
Athetosis

28
Q

how can Parkinsons disease be treated

A

Administration of L-Dopa and Dopaminergic Drugs or surgery (partial pallidotomy)

29
Q

what does the output of basal ganglia regulate

A

movement initiation, movement speed, movement amplitude

30
Q

true or false

All output for Basal Ganglia is inhibitory

A

true

Kines 360 (10 decks)

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