Which of the following is an example of a positive-feedback system?
A)body temperature regulation
B)birth of a baby
C) room temperature regulation
D) blood pH regulation

Question

Quizplus · Accepted Answer

Birth of a baby is an example of positive-feedback system as the pressure created by the baby on the cervix initiates a signal to release more oxytocin hormone, which further increases the pressure and the signal for more oxytocin. This continues until the baby is born, which is the endpoint of the positive-feedback loop. In contrast, body temperature regulation, room temperature regulation, and blood pH regulation are examples of negative-feedback systems, where the response of the system counteracts the initial stimulus to maintain homeostasis.

Which of the Following Is an Example of a Positive-Feedback