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Lizards have a typical reptilian brain, which is more advanced with a larger cerebrum and cerebellum than that of amphibians or fishes.
- Brain - small, not exceeding 1% of the body mass; it has 12 paires of cranial nerves.
- Spinal Cord - differs from that of mammals in that it extends to the tail tip.
Neurological Disorders
They are poorly understood and documented in reptiles but the basic neurological reflexes should be tested during any evaluation. Unbalanced diets may sometimes result in neurologic symptoms such as hypocalcemic tetany and therefore it is important to evaluate the nutritional requirements and history of the specimen.