Three Weeks After Implanting Olfactory Ensheathing Cells into the Injured

question 7

Multiple Choice

Three weeks after implanting olfactory ensheathing cells into the injured spinal cord of a rat, a research scientist injects a retrograde label to trace neuronal connections through the lesion. Microscopic examination indicated no movement of the dye through the lesion because of scar tissue that had formed at the site of the injury. The scar tissue is most likely formed by which of the following cell types?

• A) Schwann
• B) Astrocyte
• C) Satellite
• D) Ependymal
• E) Purkinje

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