title: Ultrastructure of developing human intramuscular nerves.
mesh_terms: D001369:Axons / Q000648:ultrastructure*; D006801:Humans; D008854:Microscopy, Electron; D008938:Mitosis; D009132:Muscles / Q000196:embryology* / Q000294:innervation / Q000648:ultrastructure; D009186:Myelin Sheath / Q000648:ultrastructure; D009420:Nervous System / Q000196:embryology*; D012583:Schwann Cells / Q000648:ultrastructure*