Fig. 6.

(A) Using the Euler–Bernoulli beam equation (Eqn 1), the EI of 27 T. scripta elegans kinocilia was calculated directly from measured values of stiffness and height projecting above the tallest stereocilia. A linear regression demonstrates that the Euler–Bernoulli EI is significantly dependent on kinocilium height. (B) The EI of individual kinocilia was calculated from the Timoshenko beam equation (Eqn 2) using the measured values of stiffness and kinocilium height and the Timoshenko curve-fit prediction of kGA=247 pN. A linear regression showed no significant relationship between the Timoshenko EI and kinocilium height. (C) The kGA of individual kinocilia was determined from the Timoshenko beam equation (Eqn 2), measured values of stiffness and kinocilium height, and the Timoshenko EI curve-fit prediction of 10,400 pN μm². A linear regression using bisquare weights was performed to reduce the impact of outliers. The regression showed that there is not a significant dependence of kGA on kinocilium height.