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Questions and Answers
Which of the following is a key factor that contributes to the struggle of axonal regeneration in the CNS?
Which of the following is a key factor that contributes to the struggle of axonal regeneration in the CNS?
- Limited ability of oligodendrocytes to phagocytose myelin debris
- Presence of the blood-brain barrier
- Inhibitory molecules in myelin debris
- All of the above (correct)
What is one reason why injured axons in the PNS have a remarkable capacity for rapid regeneration?
What is one reason why injured axons in the PNS have a remarkable capacity for rapid regeneration?
- Inhibitory molecules in myelin debris
- Presence of the blood-brain barrier
- Efficient phagocytosis of myelin debris by oligodendrocytes (correct)
- Limited entry of migrating macrophages
What is the primary reason for the delay in debris clearance in the CNS?
What is the primary reason for the delay in debris clearance in the CNS?
- Presence of the blood-brain barrier
- Limited entry of migrating macrophages
- Limited ability of oligodendrocytes to phagocytose myelin debris (correct)
- Inhibitory molecules in myelin debris
