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6- Neuro Diag > Ex1 / Ch7 Somatosensory Pathways > Flashcards

Ex1 / Ch7 Somatosensory Pathways Flashcards

1
Q

Spinothalamic pathway carries

(what kinde of sensory information)

A

crude touch

pain

Temprature

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2
Q

Dorsal Columns carry

(what kinde of sensory information)

A

light touch

vibration

conscious proprioception

discriminating touch

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3
Q

Posterior (Dorsal) Columns fiber size

A

large in diameter, and longest

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4
Q

Posterior (Dorsal) Columns travels to

A

gracilus, cuneates nucleus

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5
Q

Posterior (Dorsal) Columns is joind by

A

trigeminal lemniscus

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6
Q

Posterior (Dorsal) Columns projcet info to

A
  1. thalamus
  2. posterior internal capsul
  3. somatosensory cortex
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7
Q

Anterolateral Pathway contains

(which pathways)

A

Spinothalamic

Spinoreticular

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8
Q

Spinoreticular ends in

A

reticular formation

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9
Q

Anterolateral Pathway fibers size

A

small

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10
Q

Anterolateral Pathway Synapse

A

immediate synapses

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11
Q

Anterolateral Pathway decussation

A

it decussates but it may take a few segments

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12
Q

Lateral spinal cord lesion effects

(what sensation)

A

contralateral pain and temperature sensation

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13
Q

Lateral spinal cord lesion effects

(what level)

A

beginning a few levels below the lesion

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14
Q

Spinothalamic carries

A

Discriminating pain and temp

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15
Q

Spinothalamic major relay

A

ventral posterior lateral (VPL) nucleus

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16
Q

Spinothalamic terminates in

A

thalamus

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17
Q

Spinoreticular carries

A

emotional and arousal aspects of pain

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18
Q

Spinoreticular terminates in

A

medullary–pontine reticular formation

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19
Q

Spinoreticular Projects into

A

intralaminar thalamus

for more broad distribution to whole cortex

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20
Q

All thalamic (Trigeminal) ascend to

A

parietal lobe

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21
Q

which cortex is responsible to tell you “when I got touched”

A

Primary sensory cortex

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22
Q

hich cortex is responsible to describe “how I got touched”

A

Secondary somatosensory cortex

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23
Q

sensory loss can happen in

(which part of the sensory pathway)

A

anywhere in the sensory pathway

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24
Q
A
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25
Q

Define the term: Bar

A

pressure

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26
Q

Define the term: graph

A

writing

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27
Q

Define the term: top

A

mapping

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28
Q

Define the term: stereo

A

3D

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29
Q

Define the term: Dys

A

something isn’t right

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30
Q

Define the term: allo

A

everywhere

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31
Q

Define the term: pall

A

vibration

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32
Q

Define the term: par

A

abnormal

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33
Q

Define the term: an/a

A

without

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34
Q

Define the term: algia

A

pain

35
Q

Define the term: dynia

A

pain

36
Q

Define the term: algesia

A

pain

37
Q

Define the term: esthesia

A

feeling

38
Q

Define the term: gonsis

A

knowledge

39
Q

Define the term: pathia

A

something isn’t wright

40
Q

Define the term: parasthesia

A

tingling

41
Q

Define the term: arthralgia

A

joint pain

42
Q

Define the term: myalgia

A

muscle pain

43
Q

Spinal Cord Lesions Usually correspond to

A

motor/ sensory deficit

44
Q

the best way to identify Spinal Cord Lesions is by using

A

MRI

45
Q

what level we look for at patients with Lumbar cord compression

A

Cauda equina

46
Q

Describe Spinal cord shock

A

Temporary

traumatic

whiplash

extremity tingling

47
Q

Spinal cord shock duration

A

24-48 hours

48
Q

Term refers to the inflammation of spinal cord

A

myelitis

49
Q

Spinal cord inflamation MRI Findings

A

water density in the spinal cord, changes to the myelin

50
Q

Def: Myelomalacia

A

spinal cord softening

51
Q

Myelomalacia caused due to

A

hemorrhage into cord or ischemia

52
Q

Myelomalacia caused in eldarly by

A

osteophytes

stenosis

53
Q

Myelomalacia caused in athletes by

A

disc lesion

54
Q

describe the damage of Transverse cord lesion

A

all function lost below level of lesion

55
Q

Transverse cord lesion causes

A

penetrating trauma

multiple sclerosis

myelitis

56
Q

Hemisection the Brown Sequard Syndrome distributions

A

loss of contralateral pain

ipsilateral upper motor neuron lesion signs

57
Q

Hemisection the Brown Sequard Syndrome causes

A

penetrating trauma

lateral compressive tumors

multiple sclerosis

58
Q

Central cord syndrome size and location

A

small lesions in central commissure

59
Q

Central cord syndrome Distribution

A

suspended sensory loss (bilateral) of pain and temperature

Cervical gives classic cape Distribution

Larger lesions may affect anterior horn cells

60
Q

Central cord syndrome causes

A

syringomyelia

contusions

spinal cord tumor

61
Q

Posterior cord syndrome distributions

A

blue man group (whole body except head)

62
Q

Posterior cord syndrome causes

A

trauma

posterior tumor

multiple sclerosis

b12 defic

3* syphilis (tabetic or steppage gait)

63
Q

Anterior cord syndrome Distribution

A

anterior 2/3 of SC, loses motor function, and pain sensation below the lvl of the lesion

64
Q

Anterior cord syndrome cuases

A

trauma

MS

anterior spinal artery compression

65
Q

in Bladder Function Sense of fullness reaches

A

sensory cortex

66
Q

Bladder Function Descending pathway is

A

medial frontal micturition center

67
Q

Bladder Function Descending pathway activates

A

voluntary voiding

68
Q

Detrusor reflex is contraction of

A

the top of the bladder

69
Q

In Positive feedback results: the more the flow, the more ______________

A

relaxation of sphincters

70
Q

what happens when flow stops (empty or voluntary)

A

urethral sphincters contract

71
Q

Urethral reflex is when

A

urethra contracts- detrusor relaxes

72
Q

Bladder Lesion Sites

A

Brain- voluntary conscious control

Spinal cord- upper motor neuron

Sacral nerves- lower motor neurons

73
Q

Bladder Malfunction happens due to

A

Lesion of bilateral medial frontal micturition center

74
Q

Bladder Malfunction Results in

A

pontine and spinal micturition centers activation when bladder is full

75
Q

with Bladder Malfunction, Urine flow and emptying are

A

normal But not voluntary

76
Q

what diseases can lead to bladder malfunciton

A

hydrocephalus

parasagittal meningioma

neurodegenerative disorder

Lesion between pons and conus medullaris (spinal cord)

77
Q

Bladder Malfunction makes the bladder become

A

hyperreflexic or spactic

78
Q

Detrusor/sphincter dyssynergia symptoms

A

urgency, detrusor spasm, incomplete emptying

79
Q

Detrusor/sphincter dyssynergia causes

A

trauma

tumor

transvers myelitis

multiple sclerosis (any spinal cord lesion)

80
Q

Lesions of S2-4 nerves Symptoms

A

areflexive atonic bladder

81
Q

Lesions of S2-4 nerves Caused by

A

diabetic neuropathy

vertebral body/disc degeneration

trauma

82
Q

Lesions of S2-4 nerves results in

A

lack of sensory input from filling bladder

pt has overflow and stress incontinence

83
Q

Bowel Incontinence can happen due to

A

medial frontal lesion as with the bladder

spinal cord lesion

conus or peripheral lesion

6- Neuro Diag (10 decks)

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