Transition and root entry zone (illustration)

Case contributed by Frank Gaillard

Diagram illustrating the relationship of the root entry zone, transitional zone, central myelin and peripheral myelin.

Case Discussion

The location and length of the transitional zone will vary across different cranial nerves.

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.