Human Embryology Quiz
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Questions and Answers

What is the primary hormone responsible for inducing uterine contractions during parturition?

  • Estrogen
  • Relaxin
  • Oxytocin (correct)
  • Progesterone
  • At what month does the heart form during embryonic development?

  • Month 1 (correct)
  • Month 3
  • Month 4
  • Month 2
  • Which layer of the embryo gives rise to the nervous system and skin?

  • Endoderm
  • Mesoderm
  • Ectoderm (correct)
  • Somatoderm
  • What significant development occurs during the fifth month of pregnancy?

    <p>Fetal movements and hair appearance</p> Signup and view all the answers

    What is the average gestation period for humans?

    <p>9 months</p> Signup and view all the answers

    What is the primary function of the placenta during pregnancy?

    <p>To exchange oxygen and nutrients for waste products between the mother and embryo.</p> Signup and view all the answers

    Which hormone is NOT produced by the placenta?

    <p>Testosterone</p> Signup and view all the answers

    What connects the placenta to the embryo?

    <p>The umbilical cord</p> Signup and view all the answers

    What happens to the inner cell mass of the embryo immediately after implantation?

    <p>It undergoes differentiation.</p> Signup and view all the answers

    Which statement about chorionic villi is accurate?

    <p>Chorionic villi increase the surface area for nutrient exchange.</p> Signup and view all the answers

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