Age differences in the ultrastructure of axons in the pyramidal tract of the mouse.
D000375:Aging; D000818:Animals; D001369:Axons; D051379:Mice; D008854:Microscopy, Electron; D008870:Microtubules; D008928:Mitochondria; D009186:Myelin Sheath; D009454:Neurofibrils; D011712:Pyramidal Tracts; D013194:Staining and Labeling