med neuro e2 brainstem Flashcards

1
Q

hypoglossal nerve nuclei

A

hypoglossal nucelus

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2
Q

spinal accessory nerve nuclei

A

spinal accessory nucleus

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3
Q

vagus nerve nuclei

A

nucleus ambiguous, dorsal motor nucleuls of X, solitary nucleus,spinal nucleus of V

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4
Q

Vesibulocochlear nerve nuclei

A

vestibular nuclei and cochlear nuclei

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5
Q

facial nerve nuclei

A

facial motor nucleus, superior salivatory nucleus, solitary nucleus, spinal nucleus of V

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6
Q

Aducens nerve nuclei

A

abducens nucelus

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7
Q

trigeminal nerve nuclei

A

motor nucleus of V, chief sensory nucleus of V , mesencephalic nucleus of V
spinal nucleus of V

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8
Q

trochlear nerve nuclei

A

trochlear nucelus

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9
Q

oculomotor nerv

A

oculomotor nucelus and edinger-westphal nucleus

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10
Q

lesion of pyramid in medulla

A

originate in iipsis creebral cortex

in brainstem above decussaiont produces contralateral upper motor neuron symptoms

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11
Q

lesion of STT in medulla

A

originate in contra dorsal horn

contralateral loss of pain and temperature from the body because crossed by brainstem

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12
Q

lesion of medial lemniscus in medulla

A

originate in contra gracile and cuneate nuclei
contralateral deficit fo rfine touch and proprrioception
nuclei in the contra gracile and cuneate nuclei

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13
Q

lesion of gracile and cuneate fascicuii in medulla

A

originate in DRG terminate in nuclie

ipsilateral loss of proprioception and fine touch from body

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14
Q

lesion of spinal tract of V in medulla

A

from trigeminnal ganglioin, synapse ipsi on spinal nucleus of V, carry ipssy pain and temp from face
loss of ipsi pain and temp from face

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15
Q

lesion of sympathetic descending fibers in medulla

A

origniate from ipsi hypothalamus

ispilateral horners syndrome (ptosis, anhydrosis, miosis)

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16
Q

lesion of hypoglossal nucleus GSE in medulla

A

innervates tongue

weakness and fasciculations and ipsi deviation of tonuge

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17
Q

lesion of spinal accesssory nucleus SVE in medulla

A

weakness shrugging ipis shoulder and turning head contra

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18
Q

nucleus ambiguous lesion of SVE in medulla

A

dysphagia, horseness, loss of gag reflex

19
Q

lesion of dorsal motor nucleus of X GVE in medulla

A

not significant with unilateral

20
Q

lesion of inferior salvitory nucleus GVE in medulla

A

decreased parotid gland secretion

21
Q

lesion of solitary nucelus GVA, SVA in medulla

A

loss of taste

22
Q

lesion of spinal nucleus of V GsA in medulla

A

ispi loss of pain and temp from face

23
Q

lesion of vestibuluar and cohlear nuclei SSA in medulla

A

balance, dizzy, nystagmus, hearing deficits

24
Q

lesion in pons of longitudinal pontine fibers

A

just higher up pyramids

so contra UMN signs

25
Q

lesion in pons of STT

A

already crossed

so contra loss of pain and temp from body

26
Q

lesion in pons of medial lemnisucus

A

contra from gracile and cuneate nuclei

so contra fine touch and proprioception from body

27
Q

lesion in pons of spinal tract of V

A

ipsi all the way so loss of pain and temp from face

28
Q

lesion in pons of sympathetic division fibers

A

from ipsi hypo thalamus all the way

horners again

29
Q

horners syndrom

A

ptosis
anhydrosis
miosis
from lesion of sympathetic descending fibers

30
Q

lesion in pons of abducens nucleus

A

GSE
rectus muscle
ipsilateral mediale deviation of the eye (medial strabismus)
deficit in horizontal gaze

31
Q

lesion in pons of facial motor nucleus

A

ipsi face paralysis

hyperacusis

32
Q

lesion in pons of superior olivary nucleus

A

deficit of sound localizaiton

33
Q

lesion in pons ofsuperioroy salivatory nucleus

A

GVE

dry eye and mouth

34
Q

lesion in pons of motor nuclues of V

A

SVE

weakness of mastication and ipsi devation of mandible

35
Q

lesion in pons of spinal nuclues of V

A

GSA

ipsi loss of pain and temp from face

36
Q

lesion in pons of mesencephalic nucleus of V

A

GSA
loss of jaw reflex
innervates spindles

37
Q

lesion in midbrain of longitudinal pontine fibers

A

contra UMN signs

38
Q

lesion in midbrain of cerebral peduncle

A

continuation of longitudinal pontine fibers

contra UMN signs and drooping of mouth because coritocobulbar fibers

39
Q

lesion in midbrain of STT

A

conntra pain and temp form body AND FACE

40
Q

lesion in midbrain of medial lemniscus

A

contra deficit in fine touch and proprio form body and face

41
Q

lesion in midbrain of sympathetic descending

A

never corss so ipsi horner again

42
Q

lesion in midbrain of trochelar nucleus

A

GSE
paralysis of contra superior oblique
trochlear nerve would be ipsi oblique and diplopia

43
Q

lesion in midbrain of oculomotor nucleus

A

GSE
opthalmoplegia
lateral stabismus
ptosis

44
Q

lesion in midbrain of Edinger westphal nucleus

A

GVE
myadriasis
loss of accomodation