Two passive mechanical conditions modulate power generation by the outer hair cells
Fig 7
TM radial motion depends on geometrical orientation.
Motion trajectories of the TM (red curves when active, black curves when passive), and the reticular lamina (green curves, only active case shown) are referenced to the BM motion (blue curves). The dots indicate the trajectory position at the moment when the BM displacement is maximal toward the scala media. The radial motion of the TM depends on the attachment angle (θ). (A) Response at x = 2 mm vibrating at 18.6 (active) and 13.8 kHz (passive). (B) Response at x = 10 mm vibrating at 0.81 (active) and 0.64 kHz (passive). (C) Stiff hair bundle can reverse the TM radial motion pattern. (D) Rigid body kinematics of ter Kuile.