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Questions and Answers
During development, the eyes are derived from which of the following sources?
During development, the eyes are derived from which of the following sources?
- Mesoderm between the above layers
- Surface ectoderm of head (correct)
- Neural crest cells
- Neuroectoderm of brain
At approximately how many days' gestation does the development of the eye become evident?
At approximately how many days' gestation does the development of the eye become evident?
- 28
- 22 (correct)
- 12
- 18
What do the optic grooves eventually develop into?
What do the optic grooves eventually develop into?
- Optic stalks
- Optic cups
- Optic discs
- Optic vesicles (correct)
When does the optic vesicle convert into the optic cup?
When does the optic vesicle convert into the optic cup?
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What happens to the ventral part of the optic stalk during development?
What happens to the ventral part of the optic stalk during development?
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Study Notes
Eye Development
- The eyes are derived from the neural ectoderm during development.
- The development of the eye becomes evident at approximately 22-23 days' gestation.
- The optic grooves eventually develop into the optic vesicles.
- The optic vesicle converts into the optic cup at approximately 25-26 days' gestation.
- The ventral part of the optic stalk develops into the optic nerve during development.
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