="an ">&ensp;</span>the <span  title="" class="an ">&ensp;</span>rat <span  title="" class="an ">&ensp;</span><span  title="BrainRegionP" class="an BrainRegionP">spinal</span><span  title="BrainRegionP" class="an BrainRegionP">&ensp;</span><span  title="BrainRegionP" class="an BrainRegionP">cord</span><span  title="" class="an ">&ensp;</span>slice <span  title="" class="an ">&ensp;</span><span  title="BrainRegionP" class="an BrainRegionP">dorsal</span><span  title="" class="an ">&ensp;</span>root <span  tit