Physiology of Fertilization and Embryo Development Quiz
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Questions and Answers

During which stage of pregnancy does organogenesis occur?

  • Fetus stage
  • Zygote stage
  • Embryo stage (correct)
  • Morula stage

Which hormone is produced by the syncytiotrophoblast during implantation and placentation?

  • LH
  • Prolactin
  • FSH
  • HCG (correct)

At what stage of pregnancy does the zygote implant inside the endometrial bed?

  • Day 7 of fertilization (correct)
  • Week 8
  • Week 1
  • Week 4

During organogenesis, which of the following is formed from the mesoderm?

<p>Bones (B)</p> Signup and view all the answers

Which of the following is a teratogen that can alter organogenesis?

<p>Rubella infection (D)</p> Signup and view all the answers

What is the most sensitive period of organogenesis for the development of anomalies?

<p>15th to 50th day of pregnancy (B)</p> Signup and view all the answers

Which of the following is NOT a potential consequence of abnormal implantation during pregnancy?

<p>Gestational trophoblastic disease (B)</p> Signup and view all the answers

During gastrulation, which of the following germ layers gives rise to the nervous system?

<p>Ectoderm (A)</p> Signup and view all the answers

Which of the following organs/systems is NOT formed during the organogenesis stage of pregnancy?

<p>Liver (D)</p> Signup and view all the answers

Which of the following is the correct order of differentiation during embryonic development?

<p>Ectoderm, mesoderm, endoderm (B)</p> Signup and view all the answers

Which of the following is the correct definition of blastocyst?

<p>A stage of development after implantation (D)</p> Signup and view all the answers

Which of the following is the correct definition of primordial ridge?

<p>The differentiation of the ectoderm, mesoderm, and endoderm (B)</p> Signup and view all the answers

Which of the following is NOT a consequence of abnormal implantation during pregnancy?

<p>Gestational trophoblastic disease (B)</p> Signup and view all the answers

Which of the following is NOT formed during the organogenesis stage of pregnancy?

<p>Cartilages (C)</p> Signup and view all the answers

Which of the following is NOT a teratogen that can alter organogenesis?

<p>Folate deficiency (C)</p> Signup and view all the answers

Which of the following is the correct order of differentiation during embryonic development?

<p>Ectoderm, endoderm, mesoderm (C)</p> Signup and view all the answers

Which of the following is NOT a potential consequence of abnormal implantation during pregnancy?

<p>Preterm labor (A)</p> Signup and view all the answers

Which hormone is NOT produced by the syncytiotrophoblast during implantation and placentation?

<p>Progesterone (B)</p> Signup and view all the answers

During which stage of pregnancy does the zygote implant inside the endometrial bed?

<p>Week 1 to 3 (D)</p> Signup and view all the answers

Which of the following is NOT a hormone produced by the syncytiotrophoblast during implantation and placentation?

<p>Progesterone (B)</p> Signup and view all the answers

During organogenesis, which of the following is formed from the ectoderm?

<p>Nervous system (D)</p> Signup and view all the answers

Which of the following is NOT a potential consequence of abnormal implantation during pregnancy?

<p>Gestational trophoblastic disease (B)</p> Signup and view all the answers

During organogenesis, which of the following is NOT formed from the mesoderm?

<p>Respiratory/GIT endothelium (B)</p> Signup and view all the answers

Which of the following is NOT a teratogen that can alter organogenesis?

<p>Folic acid deficiency (B)</p> Signup and view all the answers

During which stage of pregnancy does the formation of major organ systems occur?

<p>5-6 weeks (D)</p> Signup and view all the answers

Which of the following is NOT formed from the ectoderm during organogenesis?

<p>Bones (D)</p> Signup and view all the answers

Which of the following is NOT a potential consequence of abnormal implantation during pregnancy?

<p>Pre eclampsia (D)</p> Signup and view all the answers

During which stage of pregnancy does the zygote implant inside the endometrial bed?

<p>First trimester (C)</p> Signup and view all the answers

Which of the following is NOT a potential consequence of abnormal implantation during pregnancy?

<p>Gestational trophoblastic disease (D)</p> Signup and view all the answers

Which hormone is produced by the syncytiotrophoblast during implantation and placentation?

<p>Human chorionic gonadotropin (HCG) (D)</p> Signup and view all the answers

During which stage of pregnancy does the formation of major organ systems occur?

<p>Embryo stage (D)</p> Signup and view all the answers

Which of the following is a potential consequence of abnormal implantation during pregnancy?

<p>Formation of major organ defects (C)</p> Signup and view all the answers

Which hormone is NOT produced by the syncytiotrophoblast during implantation and placentation?

<p>Progesterone (A)</p> Signup and view all the answers

Which of the following is NOT a potential consequence of abnormal implantation during pregnancy?

<p>Gestational trophoblastic disease (B)</p> Signup and view all the answers

During organogenesis, which of the following is NOT formed from the mesoderm?

<p>Liver (D)</p> Signup and view all the answers

Which of the following is a teratogen that can alter organogenesis?

<p>Folic acid supplementation (B)</p> Signup and view all the answers

Which of the following is NOT a potential consequence of abnormal implantation during pregnancy?

<p>Gestational trophoblastic disease (B)</p> Signup and view all the answers

During which stage of pregnancy does organogenesis occur?

<p>4-8 weeks (D)</p> Signup and view all the answers

Which of the following is a teratogen that can alter organogenesis?

<p>Lithium (D)</p> Signup and view all the answers

During which stage of pregnancy does the formation of major organ systems occur?

<p>First 8 weeks of conception (C)</p> Signup and view all the answers

Which of the following is a potential consequence of abnormal implantation during pregnancy?

<p>Uncontrolled proliferation of syncytiotrophoblast (D)</p> Signup and view all the answers

During organogenesis, which of the following is NOT formed from the mesoderm?

<p>Nervous system (C)</p> Signup and view all the answers

During which stage of pregnancy does the formation of major organ systems occur?

<p>Embryo (C)</p> Signup and view all the answers

Which of the following is NOT a hormone produced by the syncytiotrophoblast during implantation and placentation?

<p>Progesterone (A)</p> Signup and view all the answers

Which of the following is a teratogen that can alter organogenesis?

<p>Alcohol (D)</p> Signup and view all the answers

During which stage of pregnancy does the formation of major organ systems occur?

<p>First trimester (D)</p> Signup and view all the answers

Which of the following is NOT a potential consequence of abnormal implantation during pregnancy?

<p>Gestational diabetes (A)</p> Signup and view all the answers

Which of the following is a teratogen that can alter organogenesis?

<p>Smoking (D)</p> Signup and view all the answers

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