system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Upper motor neuron lesion is characterized by:
assistant
The correct answer is  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