Terminals from NELL cells in the ELa.A, Nearby terminal from an intracellularly labeled NELL axon onto an ELa large cell (arrow). B, Distant terminal from an intracellularly labeled NELL axon onto an ELa large cell (arrow). C, Terminals from an intracellularly labeled NELL axon onto ELa small cells. The small cell somata contacted (arrows) are distinctly grayer than the surrounding red-counterstained small cells, which indicates dye coupling. Scale bars: A, C, 20 μm; B, 50 μm.