Question 2 • 2026-2027 EDGE Human Anatomy and Physiology B
Endoneurium surrounds individual nerve fibers, so it is the innermost layer listed. Fibers are grouped into a fascicle, which is enclosed by perineurium; epineurium surrounds the whole nerve and is outermost. Thus the sequence is endoneurium, fascicle, perineurium, epineurium.
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