PHYSIOLOGY
REPRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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amniotic sac breaks
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placenta is expelled
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uterus contracts/labor
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bleeding
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Detailed explanation-1: -Cervical effacement and dilation. During the first stage of labor, the cervix opens (dilates) and thins out (effaces) to allow the baby to move into the birth canal.
Detailed explanation-2: -The first stage of labor is the longest stage. For first-time moms, it can last from 12 to 19 hours. It may be shorter (about 14 hours) for moms who’ve already had children. It’s when contractions become strong and regular enough to cause your cervix to dilate (open) and thin out (efface).
Detailed explanation-3: -Labor contractions are the periodic tightening and relaxing of the uterine muscle, the largest muscle in a woman’s body. Something triggers the pituitary gland to release a hormone called oxytocin that stimulates the uterine tightening. It is difficult to predict when true labor contractions will begin.