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Schematic depicting inner ear development in chicken from stage 13 to stage 32 (top row) and in mouse from E9.5 to E13.5 (lower row). Gray shaded regions correspond to the neural tube and the notochord. Images are based upon transverse sections through the middle of the otocyst, but are not to scale. Abbreviations: sag, statoacoustic ganglion; cvg, cochleovestibular ganglion; d, dorsal; m, medial.
