Question 27 • 2026-2027 EDGE Human Anatomy and Physiology A
During labor, contractions push the baby against the cervix, and this stretching triggers the release of more oxytocin. Oxytocin strengthens contractions, causing more stretching and further oxytocin release. This amplifies the original change, which is positive feedback, so the best choice is “A positive feedback mechanism increases the release of oxytocin to promote further contractions.”
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