Homeostasis

• Homeostasis - the regulation of internal conditions of a cell or organism to maintain optimum conditions, in response to internal and external changes
• In the human body, homeostasis controls:

  • Blood glucose concentration
  • Blood temperature
  • Water levels
• All control systems have:

  • Receptors
  • Coordination centres
  • Effectors
• Receptors - cells that detect stimuli
• Coordination centres - receive and process information from receptors (e.g. brain and spinal cord)
• Effectors - bring responses to body to bring conditions back to optimum levels (e.g. muscles and glands)
• Homeostasis is done to maintain optimum enzyme activity.