Prenatal Development Stages and Influences Quiz
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Questions and Answers

What is the major achievement during the germinal stage of development?

  • Rapid cell division leading to the formation of blastocyst (correct)
  • Formation of bones
  • Growth from ¼ inch to 1 inch
  • Formation of major organs

Which of the following terms describes the direction of development from head to tail or top-down?

  • Cell migration
  • Cephalocaudal (correct)
  • Cell differentiation
  • Proximal-Distal

What is the critical period during pregnancy when the major organs are formed and are susceptible to external influences?

  • Germinal stage
  • Apoptosis
  • Embryonic stage (correct)
  • Fetal stage

Which event marks the beginning of the fetal stage of development?

<p>Start of bone formation (D)</p> Signup and view all the answers

What structure eventually becomes the brain and spinal cord in human development?

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

Which term refers to cell death in the process of cell development and differentiation?

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

Which of the following best describes the germinal stage of prenatal development?

<p>The zygote divides into a ball of cells and travels to the uterus. (D)</p> Signup and view all the answers

Which of the following is a major achievement of the embryonic stage of prenatal development?

<p>The formation of the neural tube, which will become the brain and spinal cord. (C)</p> Signup and view all the answers

Which of the following is a characteristic of the fetal stage of prenatal development?

<p>The fetus grows rapidly and develops most internal and external structures. (D)</p> Signup and view all the answers

Which of the following is an example of a teratogen that can affect prenatal development?

<p>Exposure to high levels of radiation. (B)</p> Signup and view all the answers

Which stage of prenatal development is considered the most sensitive to environmental factors that can cause birth defects?

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

Which of the following best describes a critical period in prenatal development?

<p>A specific time when the embryo is highly sensitive to environmental factors that can cause birth defects. (D)</p> Signup and view all the answers

Which stage of prenatal development is considered the most susceptible to teratogens?

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

What is a critical or sensitive period in prenatal development?

<p>A timeframe when the developing organism is more vulnerable to damage from teratogens (C)</p> Signup and view all the answers

Which of the following is NOT a factor that influences the extent of harm caused by teratogens?

<p>The socioeconomic status of the mother (C)</p> Signup and view all the answers

During which stage of prenatal development does the germinal stage occur?

<p>First two weeks after conception (D)</p> Signup and view all the answers

What is the leading non-genetic cause of mental retardation in the United States?

<p>Prenatal exposure to alcohol (D)</p> Signup and view all the answers

Which of the following is NOT a potential consequence of high prenatal exposure to alcohol?

<p>Increased risk of childhood obesity (C)</p> Signup and view all the answers

Which of the following is a major achievement of the embryonic stage of prenatal development?

<p>Formation of the nervous system and sensory organs (C)</p> Signup and view all the answers

Which stage of prenatal development is considered the most susceptible to teratogens, or environmental factors that can cause birth defects?

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

Which of the following best describes a critical period in prenatal development?

<p>A time when the fetus is particularly sensitive to environmental influences that can cause permanent changes or damage (A)</p> Signup and view all the answers

What structure eventually becomes the brain and spinal cord in human development?

<p>The neural tube (D)</p> Signup and view all the answers

Which of the following is a factor that influences the extent of harm caused by teratogens?

<p>All of the above (D)</p> Signup and view all the answers

Which of the following is a major achievement of the germinal stage of prenatal development?

<p>Fertilization of the egg by the sperm (D)</p> Signup and view all the answers

What is the major achievement during the germinal stage of prenatal development?

<p>Rapid cell division and formation of the blastocyst (A)</p> Signup and view all the answers

Which stage of prenatal development is considered the most susceptible to teratogens?

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

What term describes the direction of development from head to tail or top-down?

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

Which event marks the beginning of the fetal stage of development?

<p>Attachment to the uterine wall (D)</p> Signup and view all the answers

Which term refers to cell death in the process of cell development and differentiation?

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

What is a critical or sensitive period in prenatal development?

<p>The embryonic stage (B)</p> Signup and view all the answers

Which of the following best describes the development of the baby's skin during the 18th week of pregnancy?

<p>The skin is very vulnerable and the baby has sleeping and waking states. (C)</p> Signup and view all the answers

What is the average length and weight of a baby at birth?

<p>20 inches (51 cm) and 7 lbs (3.2 kg) (C)</p> Signup and view all the answers

Which of the following is a major achievement of the fetal stage of prenatal development?

<p>The formation of the baby's bones and the development of reflexes. (C)</p> Signup and view all the answers

What is the critical period during pregnancy when the major organs are formed and are susceptible to external influences?

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

Which of the following best describes the process of brain development during the prenatal period?

<p>Brain development occurs throughout the prenatal period and continues after birth. (C)</p> Signup and view all the answers

What is the potential consequence of maintaining the same growth rate throughout pregnancy?

<p>The baby would weigh around 200 lbs (90 kg) at birth. (A)</p> Signup and view all the answers

During which stage of prenatal development do major organ systems begin to form and function, with each organ having a unique sensitive period influenced by different teratogens?

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

What specific factors influence prenatal development the most during the embryonic stage?

<p>Dose, heredity, and timing (D)</p> Signup and view all the answers

Why is the embryonic stage considered the most susceptible to teratogens?

<p>Organs start to form and are vulnerable to damage. (A)</p> Signup and view all the answers

What is a critical period in prenatal development?

<p>A time of greater vulnerability to damage from teratogens. (C)</p> Signup and view all the answers

Which of the following is a key factor determining the extent of harm caused by teratogens during prenatal development?

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

What effect can high prenatal exposure to alcohol have on the developing fetus?

<p>Facial and limb defects (D)</p> Signup and view all the answers

What is a potential risk associated with maternal smoking during pregnancy?

<p>Higher likelihood of premature labor (C)</p> Signup and view all the answers

Which of the following can be a consequence of prenatal exposure to Thalidomide?

<p>Development of deformities in limbs (D)</p> Signup and view all the answers

How might exposure to environmental pollutants affect prenatal development?

<p>Increased risk of developmental issues (A)</p> Signup and view all the answers

What role does the age of the mother play in prenatal development?

<p>Impact on the cumulative effects of various factors (A)</p> Signup and view all the answers

Why are infants of mothers with low socioeconomic status particularly at risk during prenatal development?

<p>The cumulative impact of multiple risk factors (A)</p> Signup and view all the answers

Which factor plays a significant role in increasing the risk of Sudden Infant Death Syndrome (SIDS)?

<p>Low birth weight of the baby (D)</p> Signup and view all the answers

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