When an axon is damaged,anterograde degeneration may occur
A) in the part of the axon attached to the cell body.
B) in neurons that synapse onto the damaged cell.
C) in the cell body attached to the damaged axon.
D) between the break and the axon's terminal.

Question

Quizplus · Accepted Answer

Anterograde degeneration occurs in the part of the axon between the break and the axon's terminal. This is because the axon is disconnected from the cell body and cannot receive the necessary nutrients and transport molecules needed for maintenance and repair. The remaining portion of the axon attached to the cell body may undergo retrograde degeneration, but this is not considered anterograde degeneration. Neurons that synapse onto the damaged cell may also be affected, but this is not considered anterograde degeneration of the damaged axon itself.

When an Axon Is Damaged,anterograde Degeneration May Occur