Figure 2.

Close associations between labeled terminal boutons and levator motoneurons. In a higher magnification drawing of CC from the case illustrated in figure 1, retrogradely labeled motoneurons (shaded) are present bilaterally in CC following a unilateral injection of WGA-HRP. Their dendrites extend out into the surrounding SOA. BDA labeled axons are sparsely branched and display numerous en passant boutons and occasional terminal boutons. A number of the boutons are in close association (arrowheads) with the dendrites and somata of the levator motoneurons, suggesting synaptic contact.