Biology / Unit 13 Bio 3351 short lesson, about 20 seconds
Hormonal Signaling for Labor
Captions available
The idea
Labor begins as rising oxytocin strengthens uterine contractions, per Bio 2751's positive feedback loop, each contraction triggering further release until delivery halts the cycle.
In practice
Uterine stretch as labor progresses stimulates further oxytocin release, per Bio 2751, deepening contractions.
Where people slip
This entry names a hormonal-signaling mechanism only —
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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