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Neuro - Week 1 > Spinal Cord Pathways -- High yield > Flashcards

Spinal Cord Pathways -- High yield Flashcards

1
Q

What is the function of the dorsal columns?

A

Tactile, vibratory and conscious proprioception sensation

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2
Q

What is the function of the lateral spinothalamic tract?

A

Itch, pain, temperature

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3
Q

What is the function of the anterior spinothalamic tract?

A

Crude touch

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4
Q

What is the function of the anterior spinocerebellar tract?

A

Unconscious proprioception
(movement and posture of the entire lower extremity)

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5
Q

What is the function of the posterior spinocerebellar tract?

A

Proprioception
(fine coordination of posture and movement of individual muscles of the lower limb)

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6
Q

Tactile, vibratory, and conscious proprioception sensation are functions of this ascending tract

A

Dorsal columns

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7
Q

Itch, pain and temperature are functions of this ascending tract

A

Lateral Spinothalamic

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8
Q

Crude touch is a function of this ascending tract

A

Anterior spinothalamic

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9
Q

Unconscious proprioception (Movement and posture of the entire lower extremity) is a function of this ascending tract

A

Anterior spinocerebellar

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10
Q

Proprioception (Fine coordination of posture and movement of individual muscles of the lower limb) is a function of this ascending tract

A

Posterior spinocerebellar

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11
Q

Pacinian corpuscles, Meissner’s corpuscles, muscle spindles, golgi tendon organs are inputs of this ascending tract

A

Dorsal columns

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12
Q

Free nerve endings, thermal receptors, pain fibers, Merkel tactile disks are inputs of this ascending tract

A

Spinothalamic

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13
Q

Pressure receptors, muscle spindles, golgi tendon organs are inputs of this ascending tract

A

Spinocerebellar

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14
Q

What level of the spinal cord are the cell bodies of first order neurons of the Dorsal columns?

A

All levels

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15
Q

What level of the spinal cord are the cell bodies of first order neurons of the anterior spinocerebellar tract?

A

L1 to S2

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16
Q

What level of the spinal cord are the cell bodies of first order neurons of the posterior spinocerebellar tract?

A

C8 to S3

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17
Q

Where are the cell bodies of second order neurons of the dorsal columns?

A

Nucleus gracilis (lower limbs) and Nucleus cuneate (upper limbs)

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18
Q

Where are the cell bodies of second order neurons of the spinothalamic tract?

A

Posterior horn

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19
Q

Where are the cell bodies of second order neurons of the anterior spinocerebellar tract?

A

Intermediate grey matter

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20
Q

Where are the cell bodies of second order neurons of the posterior spinocerebellar?

A

Branch 1: Clarke’s nucleus on L3
Branch 2: Accessory cuneate nucleus

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21
Q

Cell bodies of second order neurons in the dorsal columns for lower limbs are found here

A

Nucleus gracilis

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22
Q

Cell bodies of second order neurons in the dorsal columns for upper limbs are found here

A

Nucleus cuneate

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23
Q

Where are the cell bodies of third order neurons of the dorsal columns?

A

Ventral posterolateral nucleus of thalmus

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24
Q

Where are the cell bodies of third order neurons of the spinothalamic tract?

A

Ventral posterolateral nucleus of thalmus

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25
Cell bodies of first order neurons of these two ascending pathways are found in dorsal root ganglion at all levels of spinal cord
Dorsal columns Spinothalamic
26
Cell bodies of first order neurons of this pathway are found in spinal ganglia from L1 to S2
Anterior spinocerebellar
27
Cell bodies of first order neurons of this tract are found in spinal ganglia from C8 to S3
Posterior spinocerebellar
28
Cell bodies of second order neurons of this tract are found in the nucleus gracilis and nucleus cuneate
Dorsal columns
29
Cell bodies of second order neurons of this tract are found in posterior horn
Spinothalamic
30
Cell bodies of second order neurons of this tract are found in intermediate grey matter
Anterior spinocerebellar
31
Cell bodies of second order neurons of this tract are found in Clarke's nucleus on L3 or Accessory cuneate nucleus
Posterior spinocerebellar
32
This is the final destination of the dorsal columns tract
Postcentral gyrus
33
This is the final destination of the spinothalamic tract
Postcentral gyrus
34
This is the final destination of the anterior spinocerebellar tract
Cerebellum
35
This is the final destination of the posterior spinocerebellar tract
Inferior cerebellar peduncle
36
What is the Decussation location of the dorsal columns tract?
Medulla oblongata (becomes the medial lemniscus pathway)
37
What is the Decussation location of the spinothalamic tract?
Anterior white commissure (spinal cord)
38
What is the Decussation location of the anterior spinocerebellar tract?
Anterior white commissure (spinal cord)
39
What is the Decussation location of the posterior spinocerebellar tract?
Is uncrossed
40
Which ascending pathway is uncrossed?
Posterior spinocerebellar tract
41
Which ascending pathway crosses in the medulla oblongata?
Dorsal columns
42
Which two ascending pathways cross at the anterior white commissure of the spinal cord?
Spinothalamic and Anterior spinocerebellar
43
This descending tract functions in intentional movements, predominantly limb movements
Lateral corticospinal
44
This descending tract functions in axial and proximal upper limb movements
Anterior corticospinal
45
Descending tract that functions in upper limb movements
Rubrospinal
46
Descending tract that functions in reflexive postural movements from auditory and visual stimuli
Tectospinal (aka Colliculospinal)
47
Descending tract that functions in excitatory anti-gravity extensors
Medial/pontine reticulospinal
48
Descending tract that functions in inhibitory for axillary extensors
Lateral/medullary reticulospinal
49
Descending tract that functions in neck muscle coordination with saccadic eye movements
Medial/medullary vestibulospinal
50
Descending pathway that functions in postural control (excitatory of extensors, inhibitory flexors)
Lateral/pontine vestibulospinal
51
What is the function of the lateral corticospinal tract?
Intentional movements, predominantly limb movements
52
What is the function of the anterior corticospinal tract?
Axial and proximal upper limb movements
53
What is the function of the rubrospinal tract?
Upper limb movements
54
What is the function of the tectospinal (aka Colliculospinal) tract?
Reflexive postural movements from auditory and visual stimuli
55
What is the function of the medial/pontine reticulospinal tract?
Excitatory anti-gravity extensors
56
What is the function of the lateral/medullary reticulospinal tract?
Inhibitory for axillary extensors
57
What is the function of the medial/medullary vestibulospinal tract?
Neck muscle coordination with saccadic eye movements
58
What is the function of the lateral/pontine vestibulospinal tract?
Postural control (excitatory of extensors, inhibitory flexors)
59
The first order neurons of this tract are located in the precentral gyrus, paracentral lobule, premotor cortex, postcentral gyrus
Corticospinal
60
The first order neurons of this tract are located in the red nucleus
Rubrospinal
61
The first order neurons of this tract are located in the superior colliculus
Tectospinal (aka Colliculospinal)
62
The first order neurons of this tract are located in the Medial longitudinal fasciculus
Medial/pontine reticulospinal
63
The first order neurons of this tract are located in the medullary reticular formation
Lateral/medullary reticulospinal
64
The first order neurons of this tract are located in the medial vestibular nucleus (medulla)
Medial/medullary vestibulospinal
65
The first order neurons of this tract are located in the lateral vestibular nucleus (pons)
Lateral/pontine vestibulospinal
66
What is the Decussation location for the lateral corticospinal tract?
Pyramidal decussation
67
What is the Decussation location for the Anterior corticospinal tract?
Anterior white commissure
68
What is the Decussation location for the rubrospinal tract?
Immediately at ventral tegmental decussation
69
What is the Decussation location for the Tectospinal (aka Colliculospinal) tract?
Immediately (in midbrain)
70
What is the Decussation location for the reticulospinal tract?
Is uncrossed
71
What is the Decussation location for the vestibulospinal tract?
Uncrossed

Neuro - Week 1 (10 decks)

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