Figure 1: Schematic horizontal longitudinal sections of the rat spinal cord. Demonstrating: A. the transection model representing bilateral disruption of descending axons, B. the hemisection model illustrating ipsilateral disruption of descending axons and C. the contusion model depicting the potential sparing of descending axons in an incomplete injury.

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Figure 2: Schematic horizontal longitudinal sections of the rat spinal cord. A. Demonstration of graft acting as a bridge for regenerating axons. B. Graft functioning as a synaptic relay for descending axons. C. Transplant secreting neurotrophic factors to support the severed axon and reduce axonal retraction.

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