divisions of the nervous system

• What does the Central Nervous System (CNS) concern itself with?

  All life functions and psychological processes
• What is the role of the Peripheral Nervous System (PNS)?

  Transmits information to and from CNS
• What are the two main components of the Central Nervous System?

  Spinal cord and brain
• What does the Somatic Nervous System transmit information about?

  Information to and from senses and CNS
• What is the function of the Autonomic Nervous System?

  Transmits information to and from internal organs
• What does the Sympathetic Nervous System generally do?

  Increases bodily activities
• What is the primary response of the Sympathetic Nervous System?

  Prepares the body for action
• What does the Flight or Fight response involve?

  Increasing breathing and heart rate
• How does the Sympathetic Nervous System affect digestion?

  Switches off digestion to allocate resources
• What happens to oxygen flow to muscles during the Sympathetic response?

  Increases oxygen flow to the muscles
• What effect does the Sympathetic Nervous System have on glucose levels?

  Increases glucose levels
• What is the role of the Parasympathetic Nervous System?

  Brings the body back to homeostasis
• What does the Parasympathetic Nervous System promote?

  Rest and digest functions
• How does the Parasympathetic Nervous System affect breathing rate?

  Decreases breathing rate
• What happens to heart rate under the Parasympathetic Nervous System?

  Decreases heart rate
• What effect does the Parasympathetic Nervous System have on digestion?

  Switches digestion back on
• How does the Parasympathetic Nervous System affect oxygen flow to muscles?

  Decreases oxygen flow to muscles
• What happens to glucose levels during the Parasympathetic response?

  Decreases glucose levels
• What is the outcome of the Parasympathetic Nervous System's actions?

  Body returns to homeostasis