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NeuroAnatomy > Exam 2 - Pathways > Flashcards

Exam 2 - Pathways Flashcards

1
Q

Spinothalamic Tract

A

pain and temperature from the body

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2
Q

Trigeminospinothalamic Tract

A

pain and temperature from the face

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3
Q

Lemniscal

A

Touch, pressure, proprioception from body

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4
Q

Trigeminal

A

Touch, pressure, proprioception from face

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5
Q

Optic lesion on R optic N or retina

A

lose R visual field

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6
Q

Optic lesion on L tract after chiasm

A

R homologous hemianopsia

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7
Q

Optic lesion on optic chiasm

A

bitemporal hemianopsia (tunnel vision)

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8
Q

Optic lesion on opposite occipital lobe

A

quadrantinopsia

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9
Q

Pupillary light reflex

A

light > receptors > bipolar > ganglion > CNII > superior colliculus of midbrain > parasympathetic nucleus of oculomotor nerve > ciliary ganglion > ciliary N > iris

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10
Q

Accomodation Reflex

A

CN II > occipital lobe > superior colliculus of midbrain > parasympathetic nucleus of oculomotor nerve > CN III > ciliary ganglion > lens

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11
Q

Area 4

A

frontal lobe

simple, fine, isolated movements

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12
Q

Area 6

A

frontal lobe

motor planning

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13
Q

Area 8

A

frontal lobe

eye movement, voluntary cordinated scanning

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14
Q

Area 44-45

A

frontal lobe

speech

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15
Q

Area 9-10

A

prefrontal lobe

working memory, motivation, motor planning, decision making, problem solving, attention

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16
Q

Area 3, 1, 2

A

parietal lobe

distinguish shape, texture, size; proprioception

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17
Q

Area 17

A

occipital lobe

light intensity, shape, size, object location

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18
Q

Area 41

A

temporal lobe

loudness and pitch of sounds

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19
Q

Area 5, 7

A

parietal lobe

stereogenesis, tactile and spatial environment memory

20
Q

Area 18-19

A

occipital lobe

analyzes motion, color; control visual fixation

21
Q

Area 22, 42

A

temporal lobe

classifies sounds, speech ideas, sentence structure; interprets spoken word

22
Q

Area 39

A

parietal lobe

store house for written words, calculations, analytical, L/R distinction, recognize fingers

23
Q

Spinothalamic 1st neuron

A

free nerve ending from legs/trunk/arms through dorsal root ganglion to lamina I, II, V or lisseauer’s tract

24
Q

Spinothalamic 2nd neuron

A

dorsal horn or gray matter to ventral white commissure to ventral (light touch) or lateral (P&T) column of white matter ascending to VPL of thalamus

25
Spinothalamic 3rd neuron
VPL to PLIC to corona radiata to somatosensory cortex
26
Spinothalamic 3rd neuron from upper extremity
will synapse in lateral post central gyrus of parietal lobe
27
spinothalamic 3rd neuron from lower extremity
synapse in medial post central gyrus of parietal lobe
28
Trigeminal P&T 1st neuron
upper/middle/lower face FNE to CN V ganglion into midpons to spinaltrigeminal tractndescending to rostral medulla spinaltrigeminal nucleus
29
Trigeminal P&T 2nd neuron
spinal trigeminal nucleus to CL trigeminal thalamic tract to VPM of thalamus
30
Trigeminal P&T 3rd neuron
VPM to PLIC to corona radiata to lateral post central gyrus (face distribution)
31
Lemniscal 1st neuron
mechanoreceptors to DRG (Lissauer's) to fasciculus gracilis/fasc cuneatus to nucleus gracilis/nuc cuneatus
32
Lemniscal 2nd neuron
nucleus gracilis/nuc cuneatus to internal arcuate fibers to CL medial lemniscus to VPL of thalamus
33
Lemniscal 3rd neuron
VPL to PLIC to corona radiata to posterior central gyrus of parietal lobe (for LE and UE)
34
Trigem (touch, pr, p) 1st neuron
mechanoreceptors from face to CN V to ganglion to sensory root to main sensory nucleus in the pons
35
Trigem (touch, pr, p) 2nd neuron
main sensory nucleus to trigeminal lemniscal tract to VPM of thalamus
36
Trigen (touch, pr, p) 3rd neuron
VPM to PLIC to corona radiata to lateral post central gyrus of cortex
37
pupillary light reflex 1st neuron
CN II to superior colliculus of midbrain
38
pupillary light reflex 2nd neuron
superior colliculus of midbrain to IL/CL CN III
39
pupillary light reflex 3rd neuron
CN III to iris of eye
40
accomodation reflex 1st neuron
CN II to occipital cortex
41
accomodation reflex 2nd neuron
occipital cortex to superior colliculus of midbrain
42
accomodation reflex 3rd neuron
superior colliculus of midbrain to CN III to ciliary mm
43
Auditory 1st neuron
CN VIII to the pontomedullary junction to cochlear nuclei
44
Auditory interneuron
to IL/CL olivary nucleus
45
Auditory 2nd neuron
superior olivary nucleus to lateral lemniscal tract to inferior colliculus to medial geniculate body
46
Auditory 3rd neuron
medial geniculate body to PLIC to temporal lobe

NeuroAnatomy (7 decks)

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