3. N.S. Classification
Central Nervous System (CNS): The body's command center, interpreting information and making decisions. Brain: Processes thoughts, memories, emotions, and controls motor skills. Spinal Cord: Relays messages between the brain and the rest of the body, protected by vertebrae. Peripheral Nervous System (PNS): Connects the CNS to limbs, organs, and skin. Cranial Nerves: Emerge from the brain. Spinal Nerves: Emerge from the spinal cord.