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EMG
Stack #33938
| Question | Answer |
|---|---|
| fibrillation potentials | spontaneous depolarization from single ms fiber, as in peripheral nerve lesions |
| positive sharp waves | denervated ms at rest or ms disease (MD, polymyositis) |
| fasciculations | spontaneous potentials seen with degenerationi of AHC, nerve root compression, ms spasms/cramps |
| neurapraxia | compression of nerve, increased latencies across compressed area |
| axonotmesis | neural tube intact, axonal damage w/ wallerian degeneration distal to lesion |
| neurotmesis | total loss of axonal ftn, no conduction below lesion |