Feedback mechanisms

• What is meant by the optimum point?


  The norm at which the system operates
• What does the receptor do?


  Detects deviation from the optimum
• What do co-ordinators do?


  Co-ordinate information from different sources
• What does an effector do?


  Brings about the measures to return the system to the optimum point
• What is an example of negative feedback?

  Control of blood glucose
• What is an example of positive feedback?


  Oxytocin in childbirth. Contractions release more and more oxytocin