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CNS > Ascending Tracts > Flashcards

Ascending Tracts Flashcards

1
Q

Cuneatus- Cord Levels

A

Only in upper cord levels (input from T5-T6 and up)

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2
Q

Gracilis- Associated Rexed Lamina

A

Bypasses Rexed Lamina

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3
Q

Lateral Spinothalamic- Additional Notes

A

Analgesia (pain loss) and Thermoanesthesia (temperature loss) to the opposite side of the lesion

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4
Q

Lateral Spinothalamic- Origin

A

Spinal Cord

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5
Q

Posterior Spinocerebellar- Cord Levels

A

Found from L3 and above, input from all levels

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6
Q

Anterior Spinocerebellar- Associated Rexed Lamina

A

N/A

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7
Q

Cuneatus- Pathway of Terminations

A
  1. Nucleus Cuneatus (in M.O.) 2. VPL of Thalamus 3. Post-Central Gyrus
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8
Q

Cuneocerebellar- Cord Levels

A

N/A

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9
Q

Anterior Spinocerebellar- ____ Sided Symptoms

A

Contralateral tract, contralateral symptoms

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10
Q

Lateral Spinothalamic- Pathway of Terminations

A
  1. Spinal Cord (rexed lamina 2, 5) 2. VPL of Thalamus 3. Post-Central Gyrus
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11
Q

Cuneocerebellar- Pathway of Terminations

A
  1. Accessory Cuneate Nucleus (M.O.) 2. Ipsilateral Cerebellum
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12
Q

Lateral Spinothalamic- ____ Sided Symptoms

A

Contralateral tract, contralateral symptoms

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13
Q

Anterior Spinothalamic- ____ Sided Symptoms

A

Contralateral tract, contralateral symptoms

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14
Q

Posterior Spinocerebellar- ____ sided symptoms

A

Ipsilateral tract, ipsilateral symptoms

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15
Q

Posterior Spinocerebellar- Pathway of Terminations

A
  1. Clark’s Nucleus (know AKA’s) 2. Ipsilateral Cerebellum
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16
Q

Cuneatus- ____ Sided Symptoms

A

Ipsilateral tract, ipsilateral symptoms

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17
Q

Anterior Spinocerebellar- Modalities

A

Gross movements of Lower body (unconscious)

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18
Q

Gracilis- Decussation

A

Secondary neuron crosses via internal arcuate fibers in M.O.

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19
Q

Gracilis- Modalities

A

-Vibratory -2 Pt Touch discrimination -Proprioception

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20
Q

Posterior Spinocerebellar- Enters Ipsilateral Cerebellum via…

A

-Inferior cerebellar peduncle Note -Input from below L3 uses Gracilis tract

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21
Q

Lateral Spinothalamic- Modalities

A

Pain/Temperature

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22
Q

Anterior Spinocerebellar- Origin

A

Lumbo-Sacral grey laminae

23
Q

Cuneocerebellar- Enters Ipsilateral Cerebellum via…

A

-Inferior cerebellar peduncle

24
Q

Cuneatus- Decussation

A

Secondary neuron crosses via internal arcuate fibers in M.O.

25
Q

Cuneocerebellar- Associated Rexed Lamina

A

N/A

26
Q

Posterior Spinocerebellar- Associated Structures

A

-Rexed lamina 7 -Clark’s Nucleus (column)/Nucleus Dorsalis between L3-C8

27
Q

Cuneatus- Origin

A

Peripheral tissues of upper extremities

28
Q

Lateral Spinothalamic- Associated Rexed Lamina

A

2, 5

29
Q

Anterior Spinothalamic- Origin

A

Spinal Cord

30
Q

Cuneatus- Associated Rexed Lamina

A

Bypasses Rexed Lamina

31
Q

Anterior Spinothalamic- Modalities

A

Light touch

32
Q

Anterior Spinothalamic- Decussation

A

Crosses gradually as fibers ascend spinal cord

33
Q

Anterior Spinothalamic- Associated Rexed Lamina

A

3, 4

34
Q

Posterior Spinocerebellar- Decussation

A

Does not cross over

35
Q

Anterior Spinocerebellar- Decussation

A

TWO TIMES, as fibers enter spinal cord, and as they enter cerebellum

36
Q

Anterior Spinocerebellar- Enters Ipsilateral Cerebellum via…

A

Superior cerebellar peduncle

37
Q

Gracilis and cuneatus- Additional Notes

A

-Bypass rexed laminae -Only ascending tracts that do not synapse in the cord -Associated with Failed Romberg’s test

38
Q

Lateral Spinothalamic- Cord Levels

A

All, input from all

39
Q

Gracilis- Cord Levels

A

All cord levels (input from T5-T6 and below only)

40
Q

Anterior Spinothalamic- Cord Levels

A

All, input from all

41
Q

Cuneocerebellar- Modalities

A

Fine proprioceptive movement from the shoulder girdle

42
Q

Cuneatus- Modalities

A

-Vibratory -2 Pt Touch discrimination -Proprioception

43
Q

Cuneocerebellar- Origin

A

Accessory Cuneate Nucleus (M.O.)

44
Q

Gracilis- Pathway of Terminations

A
  1. Nucleus Gracilis (in M.O.) 2. VPL of Thalamus 3. Post-Central Gyrus
45
Q

Lateral Spinothalamic- Decussation

A

Crosses abruptly as fibers ascend spinal cord

46
Q

Cuneocerebellar- ____ Sided Symptoms

A

Ipsilateral

47
Q

Anterior Spinothalamic- Pathway of Terminations

A
  1. Spinal Cord (rexed lamina 3, 4) 2. VPL of Thalamus 3. Post-Central Gyrus
48
Q

Cuneocerebellar- Decussation

A

Does not cross over

49
Q

Gracilis- Origin

A

Peripheral tissues of lower extremities

50
Q

Posterior Spinocerebellar- Origin

A

Found from L3 and above (C8)

51
Q

Anterior Spinocerebellar- Pathway of Terminations

A
  1. Spinal Cord (grey matter) 2. Ipsilateral Cerebellum
52
Q

Gracilis- ____ Sided Symptoms

A

Ipsilateral tract, ipsilateral symptoms

53
Q

Posterior Spinocerebellar- Modalities

A

Fine Motor Movement proprioception of lower body (unconscious)

54
Q

Anterior Spinocerebellar- Cord Levels

A

All, input many input from lower body

CNS (5 decks)

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