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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
Q

Spinothalamic 3rd neuron

A

VPL to PLIC to corona radiata to somatosensory cortex

26
Q

Spinothalamic 3rd neuron from upper extremity

A

will synapse in lateral post central gyrus of parietal lobe

27
Q

spinothalamic 3rd neuron from lower extremity

A

synapse in medial post central gyrus of parietal lobe

28
Q

Trigeminal P&T 1st neuron

A

upper/middle/lower face FNE to CN V ganglion into midpons to spinaltrigeminal tractndescending to rostral medulla spinaltrigeminal nucleus

29
Q

Trigeminal P&T 2nd neuron

A

spinal trigeminal nucleus to CL trigeminal thalamic tract to VPM of thalamus

30
Q

Trigeminal P&T 3rd neuron

A

VPM to PLIC to corona radiata to lateral post central gyrus (face distribution)

31
Q

Lemniscal 1st neuron

A

mechanoreceptors to DRG (Lissauer’s) to fasciculus gracilis/fasc cuneatus to nucleus gracilis/nuc cuneatus

32
Q

Lemniscal 2nd neuron

A

nucleus gracilis/nuc cuneatus to internal arcuate fibers to CL medial lemniscus to VPL of thalamus

33
Q

Lemniscal 3rd neuron

A

VPL to PLIC to corona radiata to posterior central gyrus of parietal lobe (for LE and UE)

34
Q

Trigem (touch, pr, p) 1st neuron

A

mechanoreceptors from face to CN V to ganglion to sensory root to main sensory nucleus in the pons

35
Q

Trigem (touch, pr, p) 2nd neuron

A

main sensory nucleus to trigeminal lemniscal tract to VPM of thalamus

36
Q

Trigen (touch, pr, p) 3rd neuron

A

VPM to PLIC to corona radiata to lateral post central gyrus of cortex

37
Q

pupillary light reflex 1st neuron

A

CN II to superior colliculus of midbrain

38
Q

pupillary light reflex 2nd neuron

A

superior colliculus of midbrain to IL/CL CN III

39
Q

pupillary light reflex 3rd neuron

A

CN III to iris of eye

40
Q

accomodation reflex 1st neuron

A

CN II to occipital cortex

41
Q

accomodation reflex 2nd neuron

A

occipital cortex to superior colliculus of midbrain

42
Q

accomodation reflex 3rd neuron

A

superior colliculus of midbrain to CN III to ciliary mm

43
Q

Auditory 1st neuron

A

CN VIII to the pontomedullary junction to cochlear nuclei

44
Q

Auditory interneuron

A

to IL/CL olivary nucleus

45
Q

Auditory 2nd neuron

A

superior olivary nucleus to lateral lemniscal tract to inferior colliculus to medial geniculate body

46
Q

Auditory 3rd neuron

A

medial geniculate body to PLIC to temporal lobe

NeuroAnatomy (7 decks)

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