Fig. 3.
A dark, irregularly shaped amacrine cell process is presynaptic to a parasol ganglion cell dendrite (arrowhead); more electron-lucent amacrine cell processes are found on either side of the presynaptic process (60,000×).
A dark, irregularly shaped amacrine cell process is presynaptic to a parasol ganglion cell dendrite (arrowhead); more electron-lucent amacrine cell processes are found on either side of the presynaptic process (60,000×).