Negative Feedback Loop

Negative Feedback Loop
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  • Check out the pyramids of Freeza! Brrrrr.
  • You did not do your research on attire for this trip...
  • Oh boy! I'm starting to shiver.
  • That is your body attempting to maintain homeostasis in your body. There is a negative feedback loop occurring for thermoregulation to maintain the body temperature at a certain set point for you to survive.
  • That still doesn't explain why I'm shivering so much.
  • When your body temperature drops, this is the stimulus that causes the receptors in your skin to send a message to your brain, the control center, through an afferent pathway.
  • When does it get to the part where I become a popsicle!!!
  • Then, through an efferent pathway, the control center will send a signal to an effector, which will try to reverse the change back to the set point.
  • What would the effectors be for me?
  • Since you are cold, your effectors would be your muscles shivering and your blood vessels constricting to produce and preserve body heat.
  • Now I don't feel as cold anymore, thanks to the...
  • NEGATIVE FEEDBACK LOOP!!!
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