Negative Feedback 1

Negative Feedback 1

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  • Bobby was inside playing when his mom told him to go play outside.
  • While Bobby was playing basketball he fell and got a gash in his knee. His receptors sent an afferent message to his control center that he had been cut.
  • Ouch!
  • I am the control center! Also known as the Brain. Bobby is loosing blood, so he is going to need plenty of platelets to heal.
  • After Bobby's mom helped him inside he noticed he had started to get a scab over his cut.
  • I'm Bobby's heart! His brain, or Control Center, sent out Effectors via an efferent pathway to tell me to pump excess platelets to his cut.
  • Mom! I'm feeling much better! Thanks to Positive Stimulus I'm back to a state of homeostasis. 
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