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Fig. 5. Micrographs of the cell bodies of CI, CA1 and CA2 neurons stained by
back-filling with Co2+ and Ni2+ ions. The schematic
drawing (right) shows their locations in the CNS. The cell body of the CI
neuron was located at a site near the midline on the side contralateral to the
10th nerve root containing the CI axon in the 1st segment. The cell bodies of
the CA1 and CA2 neurons were located at sites, near the midline on the side
ipsilateral tothe 3rd nerve root in the 3rd and 4th segments, respectively.
Scale bar, 20 µm.