wild type Brn3c -/- % of wild type P 2766 632 2692 646 Saccule 2966 668 2756 400 mean 2795 586.5 21.0% 2.41679E-07 S.D. 118.62 125.21 2690 758 2882 770 Utricle 2740 612 2666 532 mean 2744.5 668 24.3% 2.18524E-07 S.D. 96.71 115.67 1268 278 1328 270 Crista 1396 246 1330 168 mean 1330.5 240.5 18.1% 9.15775E-08 S.D. 52.29 50.21 3155 41 3138 37 Cochlea 3262 34 3408 32 3326 3183 mean 3245.3 36 1.1% 8.19884E-09 S.D. 106.59 3.92 6224 944 Vestibular ganglion 6024 1000 6196 884 6684 776 mean 6282 901.00 14.3% 7.82892E-06 S.D. 282.21 95.85 12615 7620 Spiral ganglion 13745 5585 12750 6110 14655 5905 mean 13441.3 6305.0 46.9% 3.6628E-05 S.D. 953.2 902.9