The release of oxytocin during childbirth is an example of which kind of loop?
AA protective feedback loop
BA permanent feedback loop
CA positive feedback loop
DA negative feedback loop
Answer & Solution
Correct answer: C. A positive feedback loop
1. Most hormone control works by damping itself down.
2. Oxytocin does the opposite during labour.
3. Cervical stretching triggers more oxytocin, which intensifies contractions.
4. That self-reinforcing cycle is a positive feedback loop.
_Source: OpenStax Anatomy and Physiology 2e (CC BY 4.0), Ch 17 'The Endocrine System', sections 17.1-17.9_
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