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. Author manuscript; available in PMC: 2018 Jun 1.
Published in final edited form as: J Comp Neurol. 2017 Mar 14;525(8):2000–2018. doi: 10.1002/cne.24187

FIGURE 14.

FIGURE 14

Summary of cMRF connections to motoneuron types. The cMRF provides a large (thick line), bilateral projection to the medial rectus motoneurons in the C-group (present work) and to preganglionic motoneurons in the preganglionic Edinger-Westphal nucleus (EWpg) (May et al., 2016). In addition, there is a modest (thin line) projection to the medial rectus motoneurons within the ipsilateral A- and B-groups. Since the C-group contains motoneurons supplying multiply innervated fibers (MIFs), and the A- and B-groups contain motoneurons supplying singly innervated fibers (SIFs) the pattern of projections suggests the cMRF influences these two populations differently. [Color figure can be viewed at wileyonlinelibrary.com]