EMBRYO 2

• What does embryological development refer to?

  Early stages after fertilization until eight weeks
• When does fetal development begin?

  At the ninth week of pregnancy
• What occurs during embryological development?

  Major organs and body structures mature and grow
• What are the three germ layers formed during embryonic development?

  Ectoderm, mesoderm, and endoderm
• What is the significance of the neural tube in embryonic development?

  It will become the brain and spinal cord
• What is gastrulation?

  Process establishing three germ layers
• What is neurulation?

  Formation of the neural tube
• What is organogenesis?

  Development of major organs from germ layers
• What are the stages of embryonic development?

  • Zygote: Fertilized egg after conception
  • Morula: Developing egg on day 4
  • Blastocyst: Developing egg on day 5
  • Embryo: From implantation to eight weeks
  • Fetus: After eight weeks of development
• What happens during the fetal stage of development?

  Significant growth and refinement of organs
• What are the important aspects of fetal development?

  Rapid growth, maturation of organs, movement
• What does rapid growth in fetal development refer to?

  Significant increase in size and weight
• Which organs become fully functional during fetal development?

  Lungs, liver, and kidneys
• What does movement development in fetal development indicate?

  The fetus starts to move and respond to stimuli
• If a pregnancy is at week 10, which stage of development is it in?

  Fetal development
• What would you expect to observe in a fetus at 20 weeks?

  Developed facial features and limbs
• How does embryological development differ from fetal development?

  Embryological is before eight weeks; fetal is after