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. Author manuscript; available in PMC: 2015 Dec 15.
Published in final edited form as: J Comp Neurol. 2014 May 7;522(18):3960–3977. doi: 10.1002/cne.23602

Figure 9.

Figure 9

Schematic diagram summarizing the results of this study. Retinal terminals contact fusiform premotor cells in the olivary pretectal nucleus, with a contralateral predominance. Both ipsilateral and contralateral projections to the anteromedian nucleus are present, with a slight contralateral predominance. The anteromedian nucleus is the source of the preganglionic output that underlies the direct and consensual pupillary response. The olivary nucleus also contains a population of multipolar commissural neurons. In addition to targeting the anteromedian nucleus, the olivary pretectal nucleus also projects to the contralateral nucleus of the posterior commissure, which may provide an indirect pathway to preganglionic motoneurons in the anteromedian nucleus.