Which part of the nervous system primarily regulates activities such as walking, talking, and writing?

• A. Sympathetic nervous system
• B. Autonomic nervous system
• C. Parasympathetic nervous system
• D. Somatic nervous system

Answer: (D)

Verified step by step guidance

1. Step 1: Understand the main divisions of the nervous system. The nervous system is broadly divided into the central nervous system (CNS) and the peripheral nervous system (PNS).
2. Step 2: Recognize that the peripheral nervous system is further divided into the autonomic nervous system and the somatic nervous system.
3. Step 3: Know the functions of the autonomic nervous system, which primarily controls involuntary activities such as heart rate, digestion, and respiratory rate. It includes the sympathetic and parasympathetic nervous systems.
4. Step 4: Understand that the somatic nervous system controls voluntary movements by regulating skeletal muscles, which are involved in activities like walking, talking, and writing.
5. Step 5: Conclude that since walking, talking, and writing are voluntary actions involving skeletal muscles, the somatic nervous system is the part of the nervous system that primarily regulates these activities.