Fig. 2.

Targeting of C-group motoneurons and subpopulation of SOA cells by cerebellar boutons (same case as illustrated in Fig. 1). Anterogradely labeled terminal arbors (red) overlap with the somata and dendrites of some, but not all, of the retrogradely labeled (gray shading) C-group motoneurons. Examples of close associations with boutons indicated by green arrowheads. Within the SOA, a counterstained soma is encrusted with boutons (short arrow) that appear to extend onto the cell’s dendrites. Region illustrated at high magnification is indicated by the green box in the inset. Retrogradely labeled neurons are indicated by blue diamonds in inset.