the nervous system

• what does the nervous system consist of?

  it consists of the central nervous system and the peripheral nervous system.
• what are the two main functions of the nervous system(NS)?

  1. collects, processes and responds to information
  2. co-ordinates the working of different organs and cells in the body
• what is the central nervous system made out of?

  its made up of the brain and spinal cord
• in the central nervous system what is the function of the brain?

  .centre of all conscious awareness

  .divided into two hemispheres
• in the central nervous system what is the function of the spinal cord?

  .is an extension of the brain

  .passes on messages to and from the brain and contains nerves to the PNS

  .responsible for reflex actions
• what is the peripheral nervous system made out of?

  two systems:

  .automatic nervous system

  .sematic nervous system
• what does the peripheral nervous system do?

  .transmits messages via neurons to and from the CNS
• in the peripheral nervous system what is the function of the automatic nervous system?

  .governs vital functions in the body such as breathing, digestion, heart rate, digestion, sexual arousal and stress response
• in the peripheral nervous system what is the function of the sematic nervous system?

  governs muscle movement and receives information from sensory neuron