Upper motor neuron lesion is characterized by:: (A) Weakness and spasticity, (B) Fasciculation's, (C) Rigidity, (D) Localized muscle astrophy
Answer is A. UMN LMN Pyramidal & Extra pyramidal tracts involved Motor neurone of spinal cord & Neurons of cranial nerve nuclei are involved Group of Muscle affected Single Muscle affected Tone - | Lost Power - Normal or no loss Lost Superficial & deep reflexes lost Lost Babinski's sign present Absent Clonus present Absent Clasp knife reflex present Absent Spasticity Absent