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✅ Correct Answer: C — Somatic nervous system
The Somatic Nervous System (SNS) controls voluntary (conscious) movements such as walking, talking, and writing. It connects the brain and spinal cord to skeletal muscles. It carries sensory information from the body to the CNS and motor commands from the CNS to muscles.
❌ Why other options are wrong:
• A. Autonomic nervous system — Controls involuntary actions like heartbeat, digestion, and breathing; not under conscious control.
• B. Parasympathetic system — Part of the Autonomic NS; responsible for 'rest and digest' functions (slowing heart rate, stimulating digestion). Involuntary.
• D. Sympathetic system — Part of the Autonomic NS; responsible for 'fight or flight' response (increases heart rate, dilates pupils). Involuntary.
📝 Important Note: Nervous system divided into CNS (Brain + Spinal Cord) and PNS. PNS has Somatic NS (voluntary) and Autonomic NS (involuntary). Autonomic NS has Sympathetic (fight or flight) and Parasympathetic (rest and digest). Key SSC CGL topic.
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