Divisions of the Nervous System

• Automatic nervous system- involuntary; regulates functions of our internal organs; regulates involuntary responses
• Somatic nervous system- voluntary; regulates voluntary movements; in control of movement; 2 types:

  Sympathetic- fight or flight

  Parasympathetic- rest and digest
• Central nervous system- comprised of the brain and spinal cord; command centre; deals with receiving, processing and responding to sensory information; reflex arc
• Nervous system- system including the brain, spinal cord and complex nerves, which send messages back and forth between brain and body
• Brain- complex organ that controls the senses and regulates the body
• Spinal cord- a long tube-like band of tissue connecting from your brain to lower back and carries signals between brain and body
• Peripheral nervous system- a network of nerves that run throughout the head, neck and body