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Biology-16-Homeostasis > Feedback Mechanims > Flashcards

Flashcards in Feedback Mechanims Deck (5)
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When does negative feedback occur

When the stimulus causes the corrective measures to be turned off. In doing so this tends to return the system to its optimum level


Explain why negative feedback is important in maintaining a system at set point

If the info is not fed back once an effector has corrected any deviation and returned the system to the set point, the receptor will continue to stimulate the effector and an over correction will lead to deviation in the opposite direction from the original one


Explain the advantage of having separate negative feedback mechanisms to control deviations away from normal

It gives a greater degree or homeostatic control


When does positive feedback occur

When the feedback causes the corrective measures to remain turned on. In doing so it causes the system to deviate even more from the normal level


Where are the thermoreceptors in the brain