Fig. 1. Anatomy of the mouse organ of Corti. (A) Diagram of the lumenal surface of the organ of Corti (OC) at P0. A row of alternating inner hair cells (light green) and phalangeal cells (gray) are bordered by one row of inner PCs (red) and one row of outer pillar cells (PCs, pink). Outer PCs project between first-row outer hair cells (OHCs, olive green). Second and third row OHCs are separated by Deiter's cells (DC, blue). Hensen's cells (HeC, gray) form the lateral edge of the OC. (B,C) Cross-sections of the OC at (B) P0 and (C) adult.