Nerve Fibers Were Poorly Arranged (IMAGE) Neural Regeneration Research Caption Under scanning electron microscope, in poly(lactic-co- glycolic acid) tube group, nerve fibers were poorly arranged, morphological changes to the nerve fiber surface connective tissue, endoneurium, myelin sheath and axons were observed, and vessels of the basilar membrane were occluded by fragmented axonal and myelin sheath tissue. Credit <I>Neural Regeneration Research</I> Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.