Demarcation and reconstruction of efferent synapse on a wild-type OHC
(α9L9/L9). A: Single cross section. Efferent
terminal in magenta, afferent boutons in umber, synaptic cistern in green,
ribbon in turquoise, and ribbon-associated vesicles in yellow. White arrow
points to synaptic ribbon B: Z-axis projection (tilted forward
~30 degrees from the plane of section) from a 3D reconstruction of 29
sections including that in A (same scale). Same color scheme as in A, with hair
cell membrane shown in gray lines. Scale bar = 1 µm in A.