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spinal cord lesion
LMN or UMN?
Symptom | LMN or UMN |
---|---|
lost voluntary control | both LMN and UMN |
spastic, increased mm tone | UMN |
flaccid, decreased mm tone | LMN |
reflex arc absent | LMN |
reflex arc present | UMN |
absent pathologic reflexes | LMN |
little or no mm atrophy | UMN |
significant mm atrophy | LMN |
present pathologic reflexes | UMN |