Prenatal Development: The Fetal Stage
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Questions and Answers

Which of the following senses is the least developed in newborn infants?

  • Touch
  • Taste
  • Hearing
  • Vision (correct)
  • What is the approximate distance at which newborn infants can see objects best?

  • 6 inches
  • 12 inches (correct)
  • 24 inches
  • 36 inches
  • Which of the following reflexes is thought to help in exploratory learning?

  • Moro reflex
  • Rooting reflex
  • Blink reflex
  • Grasping reflex (correct)
  • What is the primary purpose of the Moro reflex in newborn infants?

    <p>To protect the baby from falling</p> Signup and view all the answers

    Which of the following reflexes is thought to help develop hand-eye coordination in newborn infants?

    <p>Tonic Neck reflex</p> Signup and view all the answers

    What is the primary function of the Blink reflex in newborn infants?

    <p>To protect the eyes from strong stimuli</p> Signup and view all the answers

    Which of the following senses is most developed in newborn infants?

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

    What is the purpose of the Stepping reflex in newborn infants?

    <p>To encourage motor development</p> Signup and view all the answers

    Which of the following reflexes is thought to ensure the infant's feeding will be a reflexive habit?

    <p>Rooting reflex</p> Signup and view all the answers

    What is the primary purpose of the Withdrawal reflex in newborn infants?

    <p>To keep the exploring infant away from painful stimuli</p> Signup and view all the answers

    What percentage of pregnancies result in miscarriage?

    <p>45%</p> Signup and view all the answers

    What is the most vulnerable period for many of the developing organism's organs?

    <p>Early in the pregnancy, before the mother knows she is pregnant</p> Signup and view all the answers

    Which of the following is considered one of the greatest risk factors facing unborn children?

    <p>Maternal drug abuse</p> Signup and view all the answers

    What is the recommended approach for expectant mothers regarding alcohol consumption?

    <p>Avoid alcohol completely</p> Signup and view all the answers

    Which of the following is NOT a potential impact of poverty on child development?

    <p>Increased risk of premature birth</p> Signup and view all the answers

    What triggers the muscles in the mother's uterus to start the rhythmic contractions of childbirth?

    <p>Chemicals released by the developing fetal brain</p> Signup and view all the answers

    Which of the following sensory abilities is NOT mentioned as being well-developed in newborns?

    <p>Sense of sight</p> Signup and view all the answers

    What have newborns been found to prefer the scent of?

    <p>Their mother</p> Signup and view all the answers

    Which of the following tests is NOT mentioned as being conducted during the first months of pregnancy?

    <p>Electrocardiogram (ECG)</p> Signup and view all the answers

    What is the purpose of the screenings conducted during the first months of pregnancy?

    <p>To detect potential birth defects and other conditions</p> Signup and view all the answers

    What is the defining characteristic of the fetal stage of prenatal development?

    <p>Growth and development of the organism</p> Signup and view all the answers

    What is the average weight of a fetus at the end of the prenatal period?

    <p>Approximately 6 to 8 pounds</p> Signup and view all the answers

    What sense does the fetus begin to develop during the fetal stage?

    <p>Taste and smell</p> Signup and view all the answers

    What preference does a newborn show regarding the mother's voice?

    <p>The newborn prefers the mother's voice to that of a stranger</p> Signup and view all the answers

    When does the fetus begin to develop its sexual organs?

    <p>By the end of the 3rd month of pregnancy</p> Signup and view all the answers

    What is the term used to refer to environmental factors that can affect the developing fetus?

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

    Which of the following is NOT a characteristic of the fetus during the fetal stage?

    <p>Ability to see and hear</p> Signup and view all the answers

    What preference does a newborn show regarding the languages heard in the womb?

    <p>The newborn prefers the languages heard in the womb over other languages</p> Signup and view all the answers

    What is the approximate timeline for the fetus to go from weighing less than an ounce to weighing an average of 6 to 8 pounds?

    <p>6 months</p> Signup and view all the answers

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