Word Bank : CRH; estrogen & progesterone; hCG; hPL; oxytocin; progesterone; prol

Question

Word Bank: CRH; estrogen & progesterone; hCG; hPL; oxytocin; progesterone; prolactin; prostaglandins; relaxin; dilation; expulsion; placental; negative; positive

Finally, Maria has gotten pregnant. She soon tells Jorge that she feels as though the baby has taken over her body! Hormonally speaking, she is correct...

- starting at implantation, the chorion begins to fill the mother's blood with [??], which "rescues" the corpus luteum, keeping blood levels of [??] high enough to keep the woman from shedding her uterine lining;

- as we enter the embryonic phase, the placenta now takes over production of [??], effectively shutting down the woman's ovaries until about a month after the baby is born;

- in the fetal period, the placenta adds more hormones, such as [??], which is thought to help the mammary glands develop, and [??], which is thought to relax the ligaments for childbirth as well as to play a role in maintaining blood supply to the fetus. The placenta also produces [??], which helps the woman metabolically resist the stress of childbearing and also seems to play a role in starting the labor process;

- as the fetus becomes ready to live outside the womb, its hypothalamus starts to secrete [??], which initiates contractions of the uterine muscles. the placenta also begins to secrete [??], beginning the process of dilating and effacing the cervix.

- as the first stage of labor ([??]) continues, a [??] feedback loop strengthens contractions of the uterine muscles.

- the second stage of labor ([??]) eventually ends this positive feedback loop with delivery of the baby's head, but

- the third stage of labor depends on residual [??] in the blood to power enough uterine contractions to deliver the placenta; finally,

- throughout the postpartum period, suckling by the baby releases both [??] to stimulate both breast and uterine muscles and [??] to stimulate increased lactation.

Explanation / Answer

1.Human chorionic gonatotrophin or hcg

progesterone

2. estrogens and progesterone

3.hPL or hunan placental lactogen

relaxin

oxytocin

4.corticosteroidreleasing hormone

prostaglandins

5.dilatation

positive

6. dilatation

7.oxytocin

8.oxytocin and prolactin

placental expulsion

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