Fig. 15. Visceral cells of the oculomotor nucleus, labeled by injections of horseradish peroxidase into the ciliary ganglion. The sagittal diagram E shows the levels of brain stem cross-sections A to D, where the tracer was found. The sections are arranged in rostrocaudal order. AC, anterior commissure; AM, anteromedian nucleus; CG, central gray; EW, Edinger-Westphal nucleus; FR, fasciculus retroflexus; ICA, interstitial nucleus of Cajal; IP, interpeduncular nucleus; MB, mammillary body; MLF, median longitudinal fasciculus; NP, nucleus of Perlia; PC, posterior commissure; OC, oculomotor nucleus; RN, red nucleus (Modified from Burde RM, Loewy AD: Central origin of oculomotor parasympathetic neurons in the monkey. Brain Res 198:434, 1980)