Chap 1: Feedbacks Flashcards
what’s the most common type of homeostatic mechanism
Negative Feedback
Why is negative feedback negative?
The response moves the variable opposite to the deviation set point
what does Negative Feedback prevent?
sudden, severe changes in the body
examples of negative feedback:
body temperature, blood pressure, glucose level in the blood
Whats the most uncommon feedback mechanism in the body?
Positive Feedback
Change/deviations is intensified, instead of reversed for ….
positive feedback
activity of effector is initially ____, instead of _______
increased, decreasing
Positve feedback is ____-lived
short-lived
what kind of conditions does positve feedback produce?
unstable conditions
Will positive feedback lead to homeostasis?
yes
examples of positive feedback
blood clotting, uterine contractions during childbirth