Positive and Negative Feedback Flashcards
1
Q
Negative feedback
A
receptors detect a change and effectors active mechanisms to return the body/environment to normal
2
Q
give examples of systems which employ negative feedback
A
control of body temp, pH and blood glucose levels
3
Q
positive feedback
A
a response that results in effectors further activating a change away from the normal : MORE PRODUCES MORE
4
Q
give examples of positive feedback
A
Sodium ion channels reaching threshold to cause depolarisation
blood clotting
