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Cut straight through an early embryo head, this cross section shows the midbrain vesicle, paired optic vesicles and thickening lens placodes. The hollow neural tube rises in a tall arch, then curls out at each lower corner into a cupped optic vesicle tucked against the surface layer. Every wall is covered in fine cellular texture, so the layered tissue reads clearly from any angle. A strong teaching piece for embryology and developmental biology lessons on how the eye forms, and an unusual specimen for a science display shelf or lab bench.

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