Pregnancy Loss and Parturition Review Quiz

1. You are making a presentation to a high school class on pregnancy and gestation. One of the students asks you what is the most likely cause for a pregnancy to fail. You respond that in your opinion it is failure of imprinting. Your answer indicates that you think failure of pregnancy occurs most during
fertilization.
 embryo development.
 fetal development.
 parturition.
2. Increased prenatal losses could be due to
nutritional stress on the mother.
 endocrine imbalances.
 insemination 6 hours prior to ovulation.
 diseases of the reproductive tract.
3. The role of estrogen during parturition is to
induce uterine myometrial gap junctions.
 induce uterine endometrial oxytocin receptors.
 induce relaxin release from the CL.
 sensitize the cervix to the action of relaxin.
4. The role of cortisol during parturition is to
induce formation of surfactant in the fetal lung.
 induce glycogen formation in the fetal liver.
 cause the fetal thyroid to release its hormones and increase fetal metabolism.
 stimulate the conversion of progesterone to estradiol in the placentome.
5. In response to fetal stress at the end of gestation, which of the following is the first to occur?
CRH release from the hypothalamus.
 ACTH release from the anterior pituitary.
 Cortisol release from the adrenal gland.
 Prostaglandin release from the placentome.
6. The breaking of the water (breaking of the allantochorion) occurs during
preparative phase of labor (stage 1).
 expulsion of the fetus stage of labor (stage 2).
 expulsion of the placenta stage of labor (stage 3).
 dystocia.
8. During parturition, the role of oxytocin is to
stimulate release of PGF from the uterine endometrium.
 stimulate uterine contractions during stage 1 of labor.
 stimulate uterine contractions during stage 2 of labor.
 stimulate uterine contractions during stage 3 of labor.
9. Dystocia is anytime when there is a difficult birth.
True
 False
10. The most common kind of dystocia is when a large fetus is present.
True
 False
11. Uterine involution takes longer than an endocrine return to estrous cyclicity.
True
 False
12. Dexamethazone can be used to induce parturition in most species.
True
 False
13. Oxytocin can be used to induce parturition in the cow.
True
 False
14. A retained placenta should be manually pulled on to remove it as soon as possible.
True
 False