Le site de vulgarisation scientifique de l’Université de Liège. ULg, Université de Liège
Otic placode

A thickening of neural cells which are produced during embryo development. Even if they have a common origin, the placodes contribute to different structures such as the formation of the crystalline lens in the eye (here one speaks of an optic placode) or the formation of the inner ear. When the embryo is being formed the otic placode is transformed to give birth to three semi-circular ducts, the cochlea and the vestibular labyrinth.

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