Positive feedback mechanisms Flashcards
1
Q
What is positive feedback mechanism
A
A mechanism by which a deviation in a variable from its set point moves conditions farther away from the normal state
2
Q
What happens to the change from the set point?
A
It gets larger
3
Q
What do positive feedback mechanisms produce
A
unstable conditions in the body, but they are short-lived, and eventually bring about homeostasis
4
Q
What are some Examples associated with normal health:
A
Blood clotting leads to more blood clotting, which stops bleeding
During childbirth, uterine contractions stimulate more uterine contractions, which lead to birth of baby
