Stages of Prenatal Development
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Questions and Answers

What is the role of the hormone secreted by the testes in a male fetus during the 3rd month?

  • Triggers the development of eyebrows, eyelashes, and scalp hair
  • Regulates the growth of the cerebral cortex
  • Causes cells to become a penis and scrotum (correct)
  • Initiates the thickening of the skin and production of vernix caseosa
  • What protects the fetus during its time in the amniotic fluid?

  • Thickened skin
  • Vernix caseosa (correct)
  • Eyebrows, eyelashes, and scalp hair
  • Insulating layer of fat
  • At what age does a fetus start to have a distinctly baby-like appearance?

  • 5th month
  • 22 weeks (correct)
  • 3rd month
  • 28 weeks
  • Why do babies born between 22 to 28 weeks have difficulty breathing?

    <p>Because their lungs are not yet mature</p> Signup and view all the answers

    What is a major factor that affects fetal development while in the womb?

    <p>Environmental factors</p> Signup and view all the answers

    Which region of the brain grows significantly during the prenatal period?

    <p>Cerebral cortex</p> Signup and view all the answers

    What is the primary function of a male's vas deferens?

    <p>Transport sperm from epididymis to urethra</p> Signup and view all the answers

    In the female reproductive system, where does fertilization usually occur?

    <p>Fallopian tubes</p> Signup and view all the answers

    What is the main function of the glands (Prostate and Bulbourethral) in males?

    <p>Secretion of the fluid part of semen</p> Signup and view all the answers

    What is the function of the scrotum in the male reproductive system?

    <p>Temperature regulation and protect testes</p> Signup and view all the answers

    Which part of the male reproductive system is responsible for discharging sperm?

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

    What is the primary function of ovaries in the female reproductive system?

    <p>Produce eggs and hormones</p> Signup and view all the answers

    What is the function of the placenta during prenatal development?

    <p>Serves as a medium of exchange for nutrients and oxygen</p> Signup and view all the answers

    Which layer of the embryo will eventually form the digestive system and lungs?

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

    During which stage of prenatal development do body structures and internal organs begin to form?

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

    What is the function of the umbilical cord during prenatal development?

    <p>Connects the developing child to the mother for nutrient exchange</p> Signup and view all the answers

    Which part of prenatal development involves rapid cell division and implantation into the uterine wall?

    <p>Zygote stage</p> Signup and view all the answers

    Where does the embryo typically rest during prenatal development, surrounded by amniotic fluid?

    <p>Amniotic sac</p> Signup and view all the answers

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