Photomicrographs of the relationship between BDA labeled cMRF axon terminals and contralateral, ChTB-HRP labeled motoneurons. (a) A-, C-group medial rectus MIF motoneuron that has numerous axosomatic and axodendritic close associations (arrowheads) with cMRF boutons. (b) A-, B-group medial rectus motoneuron with a single axon displaying axosomatic close associations as it passes. (c) An example of an A-group motoneuron. Only one labeled axon is present in the field and it does not contact this cell. [1.0 micron thick Z planes merged to produce image: a =5, b =7, c =5]. [Color figure can be viewed at wileyonlinelibrary.com]