Negative feeback

• Negative feedback is more common than positive feeback.
• Negative feedback:

  • Occurs when there is a change in the body
  • The nervous system detects the change
  • This stimulates an opposite hormonal response
  • This reverses the effect back to homeostasis
• Positive feedback:

  • A change starts
  • The nervous system detects the change
  • Then stimulates more hormones to be released to accelerate the change