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Neuro-Anatomy > Final Tracts > Flashcards

Final Tracts Flashcards

(54 cards)

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1
Q

DCML - DC side

A

ipsilateral

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2
Q

DCML - ML side

A

contralateral

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3
Q

DCML - convey

A

vibration, 2pt touch, joint position

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4
Q

DCML - cross at

A

tegmentum of caudal medulla via internal arcuate fibers

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5
Q

DCML - thalamic nucleus

A

VPL

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6
Q

ALS - convey

A

pain and temp

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7
Q

ALS - cross at

A

ventral white commissure

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8
Q

ALS - a delta vs c fiber

A

a delta - sharp/acute pain

c fiber - aching pain

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9
Q

ALS - tracts

A

spinothalamic, spinoreticular, spinomesencephalic

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10
Q

Spinothalamic - tracts

A

neospinothalamic, paleospinothalamic

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11
Q

Neospinothalamic - convey

A

sharp localized pain

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12
Q

Paleospinothalamic - convey

A

dull achy pain

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13
Q

Neospinothalamic - thalamic nucleus

A

VPL

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14
Q

Paleospinothalamic - collaterals

A

go to reticular formation

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15
Q

Paleospinothalamic - thalamic nucleus

A

intralaminar

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16
Q

Spinoreticular - convey

A

alertness, consciousness, pain (dull, achy)

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17
Q

Spinoreticular - 3rd order path

A

reticular formation to thalamic nuclei

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18
Q

Spinomesencephalic - 3rd order path

A

superior colliculus of midbrain OR periaqueductal gray of midbrain

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19
Q

Spinomesencephalic - SC convey

A

reflex responses

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20
Q

Spinomesencephalic - PAG convey

A

modulates pain circuitry

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21
Q

Amygdala - function

A

memory aspects

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22
Q

Insula - function

Study These Flashcards
A

autonomic component

23
Q

Pain modulation occurs using interneurons at…

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A

substantia gelatinosa

24
Q

DSCT - convey

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A

unconscious proprioception from trunk and LE

25
DSCT - 2nd order @ C8/T1 - L3
clarke's nucleus
26
DSCT - 3rd order
inferior cerebellar peduncle
27
VSCT - convey
unconscious proprioception from trunk and LE
28
VSCT - 2nd order
not clarke's, in ventral horn
29
VSCT - 3rd order
superior cerebellar peduncle, RECROSS in cerebellum and terminate on SAME SIDE they started
30
Cuneocerebellar tract - convey
unconscious proprioception from UE
31
Cuneocerebellar tract - 2nd order
fasciculus cuneatus
32
Cuneocerebellar tract - 3rd order
inferior cerebellar peduncle
33
Spino-olivary tract - convey
unconscious proprioception that ultimately terminates in cerebellum
34
Spino-olivary tract - 2nd order
inferior olivary nucleus
35
Spino-olivary tract - 3rd order
inferior cerebellar peduncle
36
Basal Ganglia - function
establish muscle tone and integrate semi-voluntary automatic movements
37
Cerebellum - function
make movements smooth and helps maintain posture and balance
38
Corticospinal tract - convey
skill, precision, speed, agility in voluntary movement
39
Corticospinal tract - cross at
pyramidal decussation (10% uncross until last second)
40
Corticospinal tract - terminate as
alpha and gamma motor neurons
41
ReSpT - tracts
pontine and medullary
42
Pontine ReSpT - convey
facilitates motor neurons to axial and limb extensor muscles (unilateral)
43
Medullary ReSpT - convey
inhibit/excite motor neurons to cervical muscles and excites motor neurons to back muscles (bilaterally)
44
VeSpT - tracts
lateral and medial
45
Lateral VeSpT - convey
antigravity muscles
46
Medial VeSpT - convey
head position response (bilateral with MLF)
47
Tectospinal tract - convey
reflex head movements, tracking a moving visual stimulus
48
Tectospinal tract - originates
superior colliculus of midbrain
49
Tectospinal tract - crosses at
dorsal tegmental decussation
50
Rubrospinal tract - convey
facilitates flexor and inhibits extensor motor neurons
51
Rubrospinal tract - originates
nucleus of midbrain
52
Rubrospinal tract - crosses at
ventral tegmental decussation
53
LMN lesion signs
fasciculations, neurogenic atrophy, hypo-reflexia, flaccid paralysis
54
UMN lesion signs
spasticity, hyper-reflexia, absent superficial reflexes, Babinski

Neuro-Anatomy (5 decks)

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