Which of the following is an example of positive feedback?
A) regulation of blood glucose
B) regulation of body temperature
C) labor contractions during childbirth
D) the cellular stress protein response

Question

Quizplus · Accepted Answer

Positive feedback is a process in which an initial stimulus leads to an increase in the response that intensifies the stimulus. Labor contractions during childbirth is a classic example of positive feedback as the stretching of the cervix during contractions stimulates the release of the hormone oxytocin, which in turn causes more intense contractions, leading to further cervical stretching, and so on until delivery. The other options listed are examples of negative feedback, in which the response to a stimulus counteracts or opposes the original stimulus to maintain homeostasis.

Which of the Following Is an Example of Positive Feedback