Which embryological structure gives rise to the retina?
Solution
Correct Answer: Option B
- The retina develops from the optic cup, which is an outpouching of the lateral wall of the forebrain during embryological development.
- The optic cup is a two-layered structure where the inner layer forms the neural retina responsible for photoreception, and the outer layer forms the pigmented retina.
- The optic stalk connects the optic cup to the brain and later forms the optic nerve, but it does not contribute to the retinal tissue itself.
- The lens vesicle arises separately from the surface ectoderm and ultimately forms the lens, which is a transparent structure important for focusing light, but it does not give rise to the retina.
- Lastly, neural crest cells contribute to other parts of the eye such as the corneal stroma and sclera, but they are not involved in the direct formation of the retina.
Reference: Langman's Medical Embryology, 14th Edition, Chapter 14 - Eye Development, Page 376
- The optic cup is a two-layered structure where the inner layer forms the neural retina responsible for photoreception, and the outer layer forms the pigmented retina.
- The optic stalk connects the optic cup to the brain and later forms the optic nerve, but it does not contribute to the retinal tissue itself.
- The lens vesicle arises separately from the surface ectoderm and ultimately forms the lens, which is a transparent structure important for focusing light, but it does not give rise to the retina.
- Lastly, neural crest cells contribute to other parts of the eye such as the corneal stroma and sclera, but they are not involved in the direct formation of the retina.
Reference: Langman's Medical Embryology, 14th Edition, Chapter 14 - Eye Development, Page 376
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