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CADE Block 3 > Spinal Tracts > Flashcards

Spinal Tracts Flashcards

1
Q

What do basal ganglia control

A

Planned, coordinated motor movements

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2
Q

Striatum is…

A

Caudate and putamen

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3
Q

Glutamate is…

A

Excitatory

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4
Q

GABA is…

A

Inhibitory

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5
Q

Dopamine is…

A

Excitatory or inhibitory, depends on receptor

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6
Q

Lateral corticospinal tract function

A

Voluntary motor control of upper and lower extremities

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7
Q

Anterior corticospinal tract function

A

Voluntary motor control of axial (trunk) musculature

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8
Q

Location of LMN cell body

A

Ventral horn

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9
Q

Location of UMN cell body

A

Cerebral cortex (usually precentral gyrus)

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10
Q

Lenticular formation

A

Putamen and globus pallidus

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11
Q

Inhibitory cell types in cerebellum

A

Purkinje

Basket

Golgi

Stellate

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12
Q

Excitatory cell types in cerebellum

A

Granule

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13
Q

Imputs to cerebellum and where they influence

A

Vestibular nuclei (midline) Spinicerebellar (intermediate) Cerebral cortex (lateral)

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14
Q

Deep cerebellar nuclei

A

Fastigial

Globose

Emboliform (((Interposed))))

Dentate (all inhibited by purkinje)

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15
Q

Vermis/Flocculonodular Lobe inputs and outputs

A

Inputs: -vestibular nuclei Outputs: -Purkinje cells synapse with neurons in the most medial fastigial nuclei

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16
Q

Fastigial nuclei influence…

A

Medial motor pathways (balance, maintenance of head position and control of eye movements)

17
Q

Intermediate zone of cerebellum inputs and outputs

A

Inputs: -dorsal spinocerebellar and cuneocerebellar tracts Outputs: -Purkinje cells synapse with neurons in the globose and emboliform nuclei (i.e. interposed nuclei)

18
Q

Interposed nuclei influence…

A

Lateral motor pathways (control of ongoing movement)

19
Q

Lateral zone of cerebellum inputs and outputs

A

Inputs:

-cortex via pontine nuclei

Outputs:

-Purkinje cells synapse with neurons in the dentate nuclei

20
Q

Dentate nuclei iunfluence…

A

Lateral motor pathway and cerebellar feedback loop

21
Q

Cerebrocellebelum region, deep nuclei, peduncle, main output target

22
Q

Spinocerebellum region, deep nuclei, peduncle, main output target

23
Q

Vestibulocerebellum region, deep nuclei, peduncle, main output target

24
Q

Principle Signs of Cerebellar Dysfunction

A
  • posture/balance/gait instability
  • decomposition of movement
  • dysmetria
  • dysdiadochokinesia
25
Q

Blood supply

26
Q

Anterior corticospinal tract function

A

voluntary control of axial and proximal muscles

27
Q

Vestibulospinaltracts function

A

Medial VST: positioning of head and neck; Lateral VST: balance

28
Q

Recticulospinal tracts function

A

posture and gait-related movements

29
Q

Tectospinal function

A

coordination of head movement

30
Q

UMN signs

A

Weakness

Hypertonia

Hyperreflexia

CADE Block 3 (7 decks)

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