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12 Cards in this Set
- Front
- Back
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Name the 2 syndromes/disease that are examples of demyelinating neuropathy.
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Guillan-Barre syndrome & Charcot Marie Tooth Dz
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Which condition is onion bulbing and hypertrophic nerves a part of?
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Charcot Marie Tooth Dz
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There are three types of myopathic muscle disorders (as opposed to neurogenic). What are they?
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1) dystrophic (degenerative)
2) inflammatory 3) congenital |
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Characterize the difference between Duchenne's and Becker's dystrophinopathies.
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Duchenne- more severe, early onset, rapid progression
Becker's- less severe, late onset, slow progression |
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If someone has sensory disturbance, it has to be in a nerve. DISTAL/PROXIMAL weakness with numbness, decreased reflex and dyesthesia.
With myopathic disorder, you’ll see DISTAL/PROXIMAL muscle weakness except for myotonic dystrophy! Which is DISTAL/PROXIMAL muscle weakness. |
DISTAL, PROXIMAL, DISTAL
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Effects of hemicord (brown-sequard) lesion
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- IPSI loss of fine touch/vibration below level (dorsal columns)
- IPSI loss of UMN below level (corticospinal tract) - CONTRA loss of pain/temp (Spinothalamic tract) |
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Effects of anterior spinal artery infarct
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- BILATERAL loss of STT below level
- BILATERAL upper motor neuron weakness below level (CST) - BILATERAL LMN damage (flaccid paralysis) at the segmental level - preservation of Dorsal column system |
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Effects of syringomyelia (cyst in central canal)
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- early on ==> segmental loss of pain/thermal sense (STT)
- later on as tumor gets larger, loss of LMN in anterior horn bilaterally |
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Effect of Tabes Dorsalis and what is its common cause?
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DC knocked out; tertiary syphilis
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What does combined system degeneration/Vit B12 deficiency do?
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loss of DC and lateral CST
- leaves STT intact In other words, loss of myelin in CST and DC long tracts - combined system (sensory and motor) degeneration |
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Which long tract disease causes loss of both upper and lower motor neurons without any sensory involvement?
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ALS = amyotrophic lateral sclerosis
(motor neuron disease) |
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Which condition causes loss of just anterior horn cells (LMN) leading to flaccid LMN weakness?
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poliomyelitis and spinal muscular atrophy (SMA)
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