Electron Microscope Observations on in Vitro Cultures of the Isolated Fowl Embryo Otocyst

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Abstract
In vitro cultures of isolated fowl embryo otocysts were studied with the electron microscope. Hair cells of the developing organ of Corti and crista ampullaris have been examined with particular reference to the structure of the cilia and of the cell membrane. Two types of hair cells could be distinguished on the basis whether or not they possessed a "kinocilium" and "stereocilia," or "stereocilia" only. The cytoplasmic membranes were simple and there were no multiple vesicular layers in any of the hair cells. The supporting elements consisted of supporting cells flanking the hair cells, fibroblasts, and the cartilaginous otic capsule.