Fig. 1.
Common Axon branching processes in vertebrate nervous system. A: arborization occurs at the axon terminals in target site. B: bifurcation occurs at the axon main shaft with braches projecting to targets in opposite directions. C: a schematic drawing of an amygdala bifurcating neurons projecting to both cortex and brain stem. Green dots: pAAV-CAG-GFP; Red dots: pAAV-FLEX-tdTomato. (A and B are adjusted from Gibson et al., 2011).