Mazza D, Winterson B J
Acta Otolaryngol. 1984 Nov-Dec;98(5-6):472-80. doi: 10.3109/00016488409107588.
Photographs of rabbits in the alert resting position were used to record head position. Semicircular canals were surgically exposed and points measured along each canal were used to compute the best-fit plane using a least-squares method. Computations of mean best-fit planes showed that the horizontal canals were not carried horizontally in the rabbit. The anteromedial edges were superior by 16 degrees. The anterior canals were vertically oriented and made an angle of 43 degrees to the sagittal plane. The posterior canal was tipped in the anterior direction slightly and also made an acute angle (26 degrees) with the frontal plane. Rabbit semicircular canals deviated significantly from orthogonality. The range was 86 degrees (anterior canals) to 133 degrees (posterior canals). Thus, there were no co-planar canals. Such semicircular canal geometry has implications for the neural circuitry controlling posture in the rabbit.
通过拍摄处于警觉休息姿势的兔子来记录头部位置。通过手术暴露半规管，并使用沿每个半规管测量的点，采用最小二乘法计算最佳拟合平面。平均最佳拟合平面的计算结果表明，兔子的水平半规管并非呈水平状态。其前内侧边缘比水平高出16度。前半规管呈垂直方向，与矢状面成43度角。后半规管略微向前倾斜，与额平面也成锐角（26度）。兔子的半规管显著偏离正交性。范围为86度（前半规管）至133度（后半规管）。因此，不存在共面的半规管。这种半规管几何结构对控制兔子姿势的神经回路具有影响。
