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72 Cards in this Set

  • Front
  • Back
contralateral loss of pain and temp one segment below level of lesion
lateral spinothalmic tract lesion
contralateral loss of light crude touch sensation 3 or 4 segments below the level of lesion
ventral spinothalmic tract lesion
ipsilateral leg dystaxia, patient has difficulty performing heel to shin test
dorsal spinocerebellar tract lesion
contrallateral leg dystaxia- difficulty performing heel to shin test
Ventral spinocerebellar tract lesion
level of Herpes Zoster- Shingles
T5-T10
vesicular eruption in affected dermatome
shingles
usually follows infec illness, produces LMN symp, CSF elevated protein while cell count remains normal
Guillain-Barre Syndrome
combined upper and lower motor neuron lesion, muscle weakness and wasting s sensory deficits
ALS- Lou Gehrig's-prototypic
SC hemisection
Brown-Sequard Syndrome
ipsilateral loss of tactile discrimination from perception and and position and vibration sensation below lesion
dorsal column transection
hypothalmic tract transection rostral to T2
Horners syndrome
ipsilateral spastic paresis below the UMN lesion, pos Babinski
lateral corticospinal tract transection
minor contralateral muscle weakness below lesion
ventral corticospinal tract transection
ipsilateral flaccid paralysis of somatic muscles, LMN lesions
ventral horn destruction
ipsilateral dermatomic anesthsia & areflexia
dorsal horn destruction
complete transection of SC
C1-C3
Exitus lethalis
C4-C5
Quadriplegia
below T1
Paraplegia
infarction of ventral 2/3 of SC, usually spares dorsal columns and dorsal horns, bilat Horners, loss of voluntary bladder and bowel control c perservation of reflex emptying
ventral Ant Spinal Artery Occlusion
bilat signs, absence of motor deficits in lower limbs, dest of sacral PS nucleus causing paralytic bladder, fecal incontinec, impotence
Conus Medullaris Syndrome sements S3- Co
signs predominate on one side, may result from intervertebral disk herniation, severe spontanous radicular pain
Cauda Equina Syndrome
thickened and shortened filum terminale, traction on conus medullaris- resulting in sphincter dysfuction, gait disorders, deform of feet
filum terminale- tethered cord syndrome
most common hereditary ataxia, autosomal recessive, cerebellar involvement
Fredreich's hereditary ataxia
central cavitation of cervical SC
syringomyelia
SC dx assoc c pernicious anemia, demyelination of dorsal columns- loss of vibration and position sense
Subacute Combined Degeneration Vit B12 Neuropathy
most commonly observed myelopathy, SC or SC root compression by calcified disk material extruded into spinal vertrebral canal, long tract symp
Cervical spondylosis c myelopathy
question whether patient is malingering
waddels sign
non anatomic superficial tenderness, axial load produce symp, flip test, over-reaction, non-anatomic weakness/sensory findings
3 of 5 suggest waddel's signs
muscles that abduct arm at shoulder
deltoid and supraspinatus
innervation to deltoid
axillary N C5,C6
innervation to supraspinatus
Suprascapular N C4-C6, C5
how many adjacent dorsal roots have to be sectioned to lose sensation in one dermatome
three adjacent
knee jerk reflex
L3,4
ankle reflex
S1
biceps reflex
C5,6
triceps reflex
C7
lateral shoulder dermatome
C5
thumb dernatome
C6
index/middle finger
C7
umbilicus
T10
ant thigh
L3-4
dorsal foot
L5
Upper vs Lower motor lesion
focal weakness
lower
severe atrophy
lower
no fasciculations
upper
clonus present
upper
increased muscle tone
upper
Absent Babinski
lower
normal EMG
upper
motor innervation
triceps
C7-C8
intrinsic hand muscles
C8-T1
iliopsoas
L2-L4
tibialias anter
L4-5
Gastrocnemius
S1-2
damage to motor neurons of the ventral horn or motor neurons of the CN nuclei
Lower motor neuron lesion
acute infl viral infection affecting LMNs caused by enterovirus
poliomyelitis
damage to cortical neurons that give rise to corticospinal and corticobulbar tracts
upper motor neuron lesion
lesion rostral to pyramidal decussation of caudal medulla, deficits below the lesion on ____ side
contralateral
caudal to pyramidal decussation lesion below
ipsilateral
lateral corticospinal tract crosses at
medulla
results in ____ motor deficits found below the lesion
ipsilateral
problems with lat corticospinal tract lesions
spastic hemiparesis, hyperreflexia, clasp-knife spasticity, loss of superficial(abd and cremasteric) reflexes
where does ventral corticospinal tract decussate
spinal levels in the ventral white commissure
what are its results
spastic weakness of legs c difficulty walking
results in mild contralateral motor deficit
VCT lesion
levels of fasciculi gracilis of the dorsal clolumn
T6-S5
level of fasciculi cuneatus
C2-T6
what conditions are seen in these sensory pathway lesions
Vitamin B12 neuropathy and neurosyphilis
loss of position and vibratory sense ipsilaterally below the lesion, urinary incontinence, constipation and impotence and romberg sign standing patient is more unsteady with eyes closed
dorsal column sensory deficits