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Neuro Exam 1 > Ascending Cranial Pathways > Flashcards

Ascending Cranial Pathways Flashcards

1
Q

CN V

A

trigeminal nerve

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2
Q

trigeminal nerve

A

all somatosensory of head

proprio, vib, fine touch
pain, temp, crude touch

also motor to mastication muscles

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3
Q

opthalmic nerve

A

V1

sensory

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4
Q

maxillary nerve

A

V2

sensory

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5
Q

mandibular nerve

A

V3

sensory and motor

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6
Q

dermatomes of trigeminal

A

V1 - nose and upper forehead
V2 - bottom nose to lips
V3 - chin to temple

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7
Q

ganglia for cranial nerves

A

named nuclei

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8
Q

mesencephalic nucleus

A

cell bodies of primary afferents in CNS

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9
Q

trigeminal ganglion

A

primary afferents in all 3 branches of trigeminal

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10
Q

spinal trigeminal nucleus of five

A

pain, temp, crude touch
V1,2,3

analagous to dorsal horn nuclei in ATLS (spinothalamic tract)

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11
Q

pontine sensory nucleus of five

A

aka chief, main, principle

prethalamic relay for proprio, vib, fine touch

analagous to nucleus cuneatus and nucleus gracilis

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12
Q

destinatons for trigeminal after pre-thalamic relay

A 
local reflex arcs
thalamus (VPM)
reticular formation
hypothalamus
cerebellum
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13
Q

lower motor neuronal damage

A 
decreased reflexes
babinski absent
muscle atrophy
decreased muscle tone
profound weakness
fasciculations present (twitching)
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14
Q

segments in spinal cord

A

31

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15
Q

cord end in adult

A

L2

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16
Q

C1-C7 exit

A

above vertebrae

17
Q

C8 exit

A

between C7 and T1

18
Q

below C8 exit

A

above vetrebrae

19
Q

sympathetics

20
Q

parasympathetics

21
Q

losses in hemisection

A

lose ipsilateral vibration, proprioception, fine touch
lose contralateral pain, temp, crude touch

brown sequard

22
Q

dorsal cord syndrome

A

lose bilateral dorsal columns

23
Q

ventral cord syndrome

A

lose anterior 2/3 of cord

ventral column loss

24
Q

brown-sequard syndrome

A

hemidisection of spinal cord

25
Q

central cord syndrome

A

affect area around ventral commissure

-increased pain with slight stimuli

26
Q

segmental syndrome

A

affects all cord functions at one or more levels

transverse cord lesion

lesions above - impotence and spastic paralysis of bladder

27
Q

cauda equina syndrome

A 
asymmetric multiradicular pain
leg weakness
sensory loss
bowel/bladder dysfunction
saddle anesthesia
28
Q

neuralgia

A

lancinating pain

sharp

29
Q

compression of trigeminal nerve

A

superior cerebellar artery

Neuro Exam 1 (17 decks)

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