Fig. 2

Layering and morphology of horizontal cells. A–C Surface renderings of horizontal cell somata and nuclei in radial view from FIB scan 5, D and E from Apreo scan 1. A Horizontal cell type 1 (yellow), H1–H3 horizontal cell nuclei. B Horizontal cell type 2 (H2, orange), H1 nuclei omitted. C Horizontal cell type 3 (H3, orange), H3 nucleus obscured. D Radial view of H1 cell with axon and axon terminal (yellow), H2 cell (orange), H3 cell (red), and H cell nuclei (H1–H3) in shades of blue. cp cone pedicle, HAT horizontal cell (type 1) axon terminal, mb Müllerband. E Horizontal view of a H1, H2, and H3 cell, nuclei not shown, * H1 axon terminal, B bipolar cell nucleus. Scale bars: C 10 µm (also A, B); D, E 10 µm