Fetal Development and Twins Quiz
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Questions and Answers

During which period of prenatal development does organogenesis occur?

  • Fetal period
  • Embryonic period (correct)
  • Third trimester
  • Germinal period
  • What is the critical level of neurological maturation achieved by 32 weeks of prenatal development?

  • Ability to regulate body temperature
  • Ability to hear sounds
  • Ability to trigger the birth process (correct)
  • Ability to see light
  • Which aspect of prenatal development does the third trimester mainly focus on?

  • Quickening
  • Fetal growth and maturation (correct)
  • Implantation
  • Organogenesis
  • What triggers the birth process at the end of the third trimester?

    <p>Hormones produced by the fetal brain</p> Signup and view all the answers

    Which type of twins are always of the same sex and highly similar in physical appearance?

    <p>Monozygotic twins</p> Signup and view all the answers

    What is the term used for babies born before 38 weeks of gestation?

    <p>Preterm infant</p> Signup and view all the answers

    Which trimester marks the stage where sensory receptors of the fetus are well established?

    <p>Second trimester</p> Signup and view all the answers

    What is the approximate size of a fetus at the end of the third month of prenatal development?

    <p>~1 inch</p> Signup and view all the answers

    Girls exhibit slightly faster skeletal development compared to boys by approximately how many weeks?

    <p>~4 weeks ahead</p> Signup and view all the answers

    'Quickening' in prenatal development refers to which significant event?

    <p>Mother being able to feel fetal movements</p> Signup and view all the answers

    Which factor is considered to impact the fetus during pregnancy according to the text?

    <p>Drug use</p> Signup and view all the answers

    What is a common emotional state experienced by pregnant women according to the text?

    <p>Anxiety and depression</p> Signup and view all the answers

    How can physical changes during pregnancy be perceived by pregnant women?

    <p>Source of stress</p> Signup and view all the answers

    What impact does poverty have on the fetus during pregnancy?

    <p>Negative impact on fetus</p> Signup and view all the answers

    Which of the following is NOT considered a factor affecting the fetus during pregnancy according to the text?

    <p>Physical therapy</p> Signup and view all the answers

    What is the term used to describe the condition when a zygote travels out of the fallopian tube and implants in the uterine wall?

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

    What process involves the establishment of all body structures and internal organs in the developing fetus?

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

    At what point does a fetus reach about 1 inch in length during development?

    <p>In the third month</p> Signup and view all the answers

    What is primarily responsible for making the male and female brains slightly different during prenatal development?

    <p>Sex hormones</p> Signup and view all the answers

    At what stage of prenatal development does a fetus grow to around 10 inches and approximately 2 pounds in weight?

    <p>Second trimester</p> Signup and view all the answers

    What is the term used to describe when a developing fetus has grown large enough that its movements can be felt by the mother?

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

    Which type of twins may be of different sexes and have only about half their genetic material in common?

    <p>Dizygotic twins</p> Signup and view all the answers

    What is the term used to describe babies born before the gestational period of 38 weeks?

    <p>Preterm infant</p> Signup and view all the answers

    What is achieved by a fetus at the end of the third trimester that triggers the birth process?

    <p>Neurological maturation</p> Signup and view all the answers

    What triggers malformations in the fetus if exposed to substances like viruses, medicines, or alcohol during prenatal development?

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

    What is a potential impact on the fetus during pregnancy due to the mother's age?

    <p>Increased risk of genetic abnormalities</p> Signup and view all the answers

    How can poverty potentially affect the fetus during pregnancy?

    <p>Higher likelihood of premature birth</p> Signup and view all the answers

    Which emotional state experienced by pregnant women can be particularly harmful to the fetus?

    <p>Anxiety and depression</p> Signup and view all the answers

    What physical changes during pregnancy may be perceived as a source of stress by pregnant women?

    <p>Nausea and indigestion</p> Signup and view all the answers

    How do social roles change for a woman during pregnancy according to the text?

    <p>Transformation from mother/father to grandmother/grandfather</p> Signup and view all the answers

    Which substance is mentioned in the text as potentially harmful if used during pregnancy?

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

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