peripheral nerve injury and disorders Flashcards
parts of a motor unit
lower motor neuron/peripheral axon
neuromuscular jxn
innervated myocytes
what creates myelin in in pns
schwann cells
degeneration of peripheral segment,
axonal neuropathy
damage to schwann cells causes what type of neuropathy
demyelinating
where does demyelination occur in demyelinating neuropathy
random internodes
3 patterns of p. neuropathy
mononeuropathy: single nerve: entrapment
polyneuropathy: diffuse/symmetric axonal loss: stocking glove
polyneuritis multiplex: randomly affects portions of individual nerves
what pns disorder has ascending paralysis
GBS
what is by nerve roots in GB
macrophage: autoimmune
who gets gb
males 10-15, 50-57
where is the demylination in Chronic inflammatory demyelinating polyneuropathy
segmental demy/remy
what is damaged in diabetic peripheral neuropathy
axonal and myelin
how to test for diabetic p. neurop?
monofilament
what should ppl w/ diabetic p. neurop do daily?
foot inspection
p. nerve injury can be caused by 3 other things…
toxins: longest axon
systemic vasculitis: sensory and motor
genetic called charcot-marie-tooth diseases: young adults
what is chronic inflam demyelinating polyneuropathy
“chronic GB”