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AP Homeostasis & Feedback Loops

Anatomy Physiology homeostasis, positive & negative feedback loops
by

Daneice Foster

on 25 August 2015

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Transcript of AP Homeostasis & Feedback Loops

HOMEOSTASIS
internal conditions stay within narrow range
brings even greater change in same direction
POSITIVE FEEDBACK
Keeps variables close to a set point


NEGATIVE FEEDBACK LOOP
detects change
* sends signal to CNS that change is needed
reverses change and brings back to normal

keep close to set point
NEGATIVE FEEDBACK


POSITIVE FEEDBACK
So looking at the concept map,
which feedback loop helps maintain homeostasis?
Negative
or
Positive
?
YES!! Negative feedback loops help maintain homeostasis!
THE END :)
Full transcript