Fig. 3.
Confocal microscopic images of FB injection areas. (A) Representative longitudinal section of rat spinal cord shows the injection site (white arrow) and labeled axons adjacent to the injection site. The FB diffusion area was ∼2.2 × 1.1 mm. (B) FB labeling of axons (fluorescent filaments) extending from the injection site. (Color image is available online at www.liebertpub.com/jon)