Spinal Cord, Cranial Nerve, and Peripheral Neuroanatomy — Reflex Arcs, ISNCSCI Key Muscles, Dermatomes, Cranial Nerves, Plexus Anatomy, and the Autonomic Nervous System

A 24-year-old male is admitted to the intensive care unit 12 hours after a high-speed motorcycle collision, presenting with acute weakness in his right leg and sensory loss following a stab wound to his upper back.