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In this video, you see right sided atrophy, right sided deviation, and fasiculations R>L, indicating a
peripheral 12th nerve palsy ... Fasciculations #PhysicalExam ... #Clinical #Video ... #CNXII #CN12 #Neurology ... #Deficit #CranialNerve
Left Tongue Deviation caused by UMN XII palsy

Looks can be deceiving. The UMN innervation of most
cranial nerves is bilateral ... this rule are CN ... #clinical #video ... #hypoglossal #physicalexam ... #neurology