Homeostasis

• what is homeostasis?

  the maintenance of a constant internal environment in the body so enzymes can work at an optimal level

  
• homeostasis supports body functions such as

  -blood, glucose levels

  -temperature

  -water and ion content

  -carbon dioxide concentration

  
• what are the four main body functions the body needs to control?

  water and ion content.

  carbon dioxide concentrations.

  temperature.

  blood glucose levels.

  
• homeostasis may involve

  • responses using nerves
  • chemical responses using hormones

  
• the brain is a

  coordination centre

  
• what organs receive and process info from receptors

  brain, spinal chord and pancreas

  
• muscles or glands that bring about responses that restore optimum levels

  effectors

  
• effectors are

  muscles or glands