FIGURE 2. Camera lucida drawings showing the rostrocaudal distribution 
of Fos-immunoreactive neurons 2 hours after formalin 
injection into the ipsilateral plantar hindpaw. The most intense 
immunoreactivity is noted at the L3-L5 segments, the major site 
of termination of afferents from the plantar hindpaw. Labeling in 
the superficial dorsal horn is concentrated in the L3-L5 segments, 
whereas labeling in the neck of the dorsal horn and ventromedial 
gray is present throughout the lumbar enlargement. 
SOURCE: Presley et al. 1 990. Copyright 1 990 by the Society for 
Neuroscience (New York). 
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