Fetal Development Week 1-3: Implantation, Gastrulation, and Embryonic Layers

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Questions and Answers

What is the primary function of hCG in the process of fetal development?

  • Gastrulation of the epiblast cells
  • Detection of pregnancy (correct)
  • Development of the primitive streak
  • Formation of the bilaminar disc

During which week of fetal development does the heart begin to beat?

  • Week 3
  • Week 6
  • Week 4 (correct)
  • Week 2

What is the result of gastrulation during the third week of fetal development?

  • Development of the three germ layers (correct)
  • Formation of the primitive streak
  • Differentiation of the digestive tube
  • Formation of the bilaminar disc

What is the outer layer of cells that surrounds the endoderm in the prime gut tube?

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

During which week of fetal development do fetal movements begin?

<p>Week 8 (A)</p> Signup and view all the answers

What is the period of time during which organogenesis occurs?

<p>Weeks 3 to 8 (D)</p> Signup and view all the answers

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