A histological comparison of the original and regenerated tail in the green anole, Anolis carolinensis

This study compares the tissues of original and regenerated lizard tails to understand regeneration. It provides baseline data for future research. The regenerated tail has a cartilage tube enclosing a spinal cord with an ependymal core, but lacks dorsal root ganglia and peripheral nerves regeneration. The muscles in the regenerated tail are disorganized with more connective tissue compared to the original tail.

• 1
  The regenerated tail has a cartilage tube with foramina, enclosing a spinal cord with an ependymal core, but no regeneration of dorsal root ganglia or peripheral nerves.
• 2
  The original tail has muscle groups arranged in quadrants, while the regenerated tail has irregular muscle bundles with increased connective tissue.
• 3
  The muscles in the regenerated tail attach to the cartilage tube and to each other, unlike the original tail where muscles attach to vertebrae.