Involution occurs because
a. FSH and LH levels rise
b. uterine contractions strengthened the myometrium
c. hCG levels fall
d. of a fall in circulating estrogen and progesterone
e. both (c) and (d)
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Question 2) During involution, the uterus ____ to its ____ stage.
a. enlarges, gestational
b. enlarges, pregestational
c. shrinks, gestational
d. shrinks, pregestational
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Question 3) Which of the following stimulates uterine contractions?
a. oxytocin from the posterior pituitary
b. prostaglandin from the decidua
c. progesterone from the placenta
d. both (a) and (b) above.
e. all of these answers.
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Question 4) Oxytocin
a. is an extremely potent uterine muscle stimulant.
b. is involved in a positive feedback cycle during parturition.
c. is produced in the hypothalamus.
d. both (a) and (b) above.
e. all of these answers.
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Question 5) CRH is important because
a. it induces fetal cortisol production.
b. it results in fetal lung development.
c. it causes uterine contractions.
d. both (a) and (b) above.
e. both (a) and (c) above.
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Question 6) Oxytocin
a. is not important for stimulating uterine contractions.
b. causes contraction of the myoepithelial cells surrounding the alveoli of the breast.
c. stimulates synthesis of milk by the milk glands.
d. both (a) and (b) above.
e. all of these answers.
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Question 7) Which characteristics is consistent of a woman entering the first stages of labor?
a. uterus is being stimulated by sympathetic activity
b. uterus is 100 times more response to oxytocin compared to pre-pregnancy
c. oxytocin secretion drops.
d. a negative-feedback loop established between progesterone and oxytocin.
e. inflammatory responses are inhibited
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Question 8) The third stage of labor
a. involves dilation of the cervix to 10 cm.
b. refers to the actual birth of the baby.
c. occurs when the entire uterine contents shift downward and the fetus's head is positioned against the cervix.
d. involves delivery of the placenta.
e. is characterized by rupture of the membranes surrounding the amniotic sac.
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Question 9) Which of the following statements concerning human chorionic gonadotropin is incorrect?
a. it is secreted by the placenta.
b. it maintains the corpus luteum of pregnancy.
c. it is secreted by the corpus luteum of pregnancy.
d. the presence of chorionic gonadotropin in the urine is the basis of pregnancy diagnosis tests.
e. it is secreted primarily during the first ten weeks of gestation.
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Question 10) Amniotic fluid:
a. is similar in composition to ECF
b. is found in the placenta
c. is made by the chorion
d. is found outside the chorion
e. none of the above
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