Regrowth of a Damaged Axon Can Occur More Readily in the Peripheral

question 113

Multiple Choice

Regrowth of a damaged axon can occur more readily in the peripheral nervous system than in the brain because

• A) Schwann cells form barriers to axon regrowth.
• B) Schwann cells form cylinders through which new axons can grow and reinnervate a target cell nerve cell.
• C) Schwann cells generate a chemical signal that instructs nerve cells to die.
• D) Astrocytes form cylinders through which new axons can grow and reinnervate a target cell nerve cell.
• E) Oligodendroglia form barriers to axon regrowth.

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