Embryonic & Fetal Development of the Eye
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Questions and Answers

When does the invagination of optic and lens vesicles occur during embryonic development?

  • 25 days
  • 2nd month (correct)
  • 22 days
  • 28 days

At what stage does the closure of the embryonic fissure begin?

  • Retinal differentiation
  • Hyaloid artery filling the embryonic fissure
  • Neural crest cell migration
  • Formation of pigment granules in RPE (correct)

During which month do precursors of rods and cones start to differentiate in the retina?

  • 4th month
  • 2nd month
  • 5th month
  • 3rd month (correct)

What marks the beginning of the development of the ciliary body?

<p>Forward growth of the anterior rim of the optic vesicle (B)</p> Signup and view all the answers

During which month does the hyaloid system start to regress in embryonic/fetal development?

<p>4th month (D)</p> Signup and view all the answers

What is a significant event that occurs during the 5th month of embryonic/fetal eye development?

<p>Differentiation of photoreceptors' inner segments (D)</p> Signup and view all the answers

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