Multiple Choice
Which of the following statements best characterizes positive feedback control of homeostasis?
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1. Introduction to Anatomy & Physiology
Feedback Loops: Positive Feedback
Multiple Choice
Uterine contractions during childbirth are an example of which type of feedback loop?
A
Inhibitory feedback loop
B
Neutral feedback loop
C
Positive feedback loop
D
Negative feedback loop
Verified step by step guidance1
Understand the concept of feedback loops: Feedback loops are biological mechanisms whereby the body maintains homeostasis. They can be either positive or negative.
Identify the characteristics of a positive feedback loop: In a positive feedback loop, the response enhances or amplifies the initial stimulus, leading to an increased response.
Consider the process of uterine contractions during childbirth: During labor, uterine contractions push the baby towards the cervix, which in turn stimulates the release of oxytocin.
Analyze the role of oxytocin: Oxytocin further stimulates uterine contractions, creating a cycle that intensifies until childbirth is complete.
Conclude that uterine contractions during childbirth are an example of a positive feedback loop, as the process amplifies the initial stimulus (contractions) to achieve a specific outcome (childbirth).
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