due to binding of the lectin to ependymal cells subsequent to an intraventricular injection , only select populations of neurons ( i.e. , hippocampal formation ; paraventricular nuclei ; midbrain raphe ; vi , x , xii motor nuclei ; among others ) were exposed extracellularly to wga-hrp and became labeled by retrograde axoplasmic transport from axon terminals or by direct cell body/dendritic uptake .
C0027882
neurons
C0599444
cell body