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Retina, eye lens, brain and skin are formed fromA. MesodermB. EctodermC. EndodermD. Both ectoderm and endoderm

Answer» Correct Answer - B
(B) Derivatives of Ectoderm
1. Epidermis of skin and epidermal dervates lilke hair, nails, sweat glands, sebaceous glands
2. Enamel of teeth, salivary glands, mammary glands.
3. Neural system including all neurons, brain, spinal cord.
4. Lens, cornea, retina, conjunctiva, muscles of iris.
5. Pituitary, pineal and adrenal medulla.
6. External ear, internal ear (membranous labyrinth)
7. Terminal part of male urethra.
8. Nasall cavity, olfactory epithelium.
9. Procotodaeum and stomodaeum.
10. Neural tube.
11. Branchial arches.


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