Negative

Negative
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  • Wow! What an amazing meal
  • Maybe that's because you had low blood sugar
  • It was so weird. Before dinner, I felt so groggy and light-headed, but now I feel fine
  • When your blood sugar is low, your body activates glucagon (effector) since the receptor signals to the brain (control center) that it's low
  • So then the brain signals for the receptor to release insulin?
  • What does that have to do with it?
  • This then brings your blood sugar levels back up to normal as an efferent respon
  • The effector the signals that there's too much sugar in the bloodstream, and the afferent pathway signals to the brain
  • Well what happens after I eat?
  • Correct! That's the basics of a negative feedback loop
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