alleryThe hormone that drives uterine contractions during childbirth (parturition) is:
AOxytocin (via positive feedback)
BInsulin (during fasting)
CGlucagon (raises blood sugar)
DAdrenaline (fight-or-flight response)
Answer & Solution
Correct answer: A. Oxytocin (via positive feedback)
Oxytocin (from posterior pituitary) drives strong uterine contractions during parturition.
**It operates via POSITIVE FEEDBACK:** contractions stimulate more oxytocin, escalating until birth.
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