homeostasis

• Homeostasis


  Maintaining a stable internal environment
• Your body is both a sensor and a regulator for homeostasis
• Examples of homeostasis

  • Controlling body temperature
• Nervous System

  Made up of different parts: central nervous system (brain and spinal cord) and peripheral nervous system
• Negative Feedback

  1. Detector senses a change in a variable

  2. Detector sends information to the coordinator

  3. Coordinator sends instructions to the effector

  4. Effector acts to restore the variable to the set point
• Negative feedback counteracts changes to maintain a stable internal environment
• Negative feedback happens without you thinking about it, it's an automatic process
• Negative feedback is a fancy-sounding term for a simple, common sense idea
• Negative feedback stops things getting out of balance
• Internal conditions of the body need to be regulated to maintain homeostasis
• Component of a control system that coordinates a response

  Coordinator (e.g. Central Nervous System)