In the CNS, the formation of a 'glial scar' is primarily attributed to which cell type?
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Correct answer: Reactive astrocytes
Reactive astrogliosis occurs after CNS injury, where astrocytes proliferate and extend processes to wall off the injury site. This physical and chemical barrier (the glial scar) prevents axonal regeneration.
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More Nerve Regeneration questions
- The structural unit that leads the way for a regenerating axon is called the:
- Which of the following describes 'Retrograde Degeneration' in a damaged neuron?
- Chromatolysis involves the dissolution of Nissl bodies. What are Nissl bodies composed of?
- What is the role of the 'basal lamina' of the Schwann cell during regeneration?
- Which type of axonal transport is responsible for moving the materials required for building the new axonal cytoskeleton during repair?
- If an axon was previously myelinated, what happens after it successfully regenerates?