Divisions of the Nervous System

• What is the central nervous system (CNS)?


  Consists of brain and spinal cord; origin of all complex commands and decisions.

  
• What is the peripheral nervous system (PNS)?


  Sends info to CNS from outside world, transmitting messages from CNS to muscles and bodily glands.

  
• How is the Nervous System divided?


  - Central Nervous System → Spinal Cord + Brain

  - Peripheral Nervous System → Somatic Nervous System + Autonomic Nervous System → Sympathetic Nervous System + Parasympathetic System

  
• What is the Central Nervous System (CNS)?


  - Consists of the brain and spinal cord

  - Controls behaviour and regulates body's physiological processes
• What is the role of the Spinal Cord in the CNS?


  - Relay info between brain and rest of body

  - Allows monitoring and regulation of bodily processes + coordination of movements
• What is the Peripheral Nervous System?


  - All the nerves outside the CNS

  - Divided into somatic and autonomic nervous system
• What is the Somatic Nervous System?


  - Divison responsible for carrying sensory and motor information to and from the CNS
• What is the Autonomic Nervous System?


  - Regulates involuntary actions e.g. heartbeat and digestion