Division of the nervous system

• What is the role of the nervous system?

  • The nerve cells collect information from the world and then process the info and then take action by directing body organs and muscles through transmission of electro chemical messages
• What are the two parts the nervous system is split as?

  • The nervous system is split as the CNS (brain and spinal cord) which responsible for complex processing(brain) and receiving and transmitting information (spinal cord)
  • And then split as the PNS(peripheral) which is a network of messenger neurones. It contains Autonomic and Somatic NS
• What is the autonomic nervous system?

  • Controls actions of internal organs and glands. is not under conscious control
  • Has the sympathetic branch which increases body activities such releasing noradrenaline in stress response of fight or flight
  • Has the parasympathetic branch which decreases bodily activities when activates in rest
• What is the Somatic Nervous system?

  • Controls skeletal muscles for movement, is conscious control