In the Process Known as Wallerian Degeneration ________

Question

In the process known as Wallerian degeneration ________.
A) the axon proximal to the injury deteriorates
B) macrophages phagocytize the debris of damaged axons
C) Schwann cells completely degenerate
D) no trace is left of the path of the original axon that was damaged
E) All of the answers are correct.

Accepted Answer

Wallerian degeneration involves the degeneration of the axon distal to the injury, while macrophages phagocytize the debris of the damaged axons. Option A is incorrect because Wallerian degeneration involves the degeneration of the axon distal to the injury, not proximal. Option C is incorrect because Schwann cells play a crucial role in the regeneration of injured peripheral nerves. Option D is incorrect as some trace of the path of the original axon remains, which can guide axonal regeneration. Option E is incorrect as only Option B is correct.