AF axial fibri AF PC OS PC protoplasmic cylinde IP insertion pore A1) 500nm cylinder Nucleoid Ribosome Cell wall Plasma membrane Outer sheath 5 um ce: Ryan K, Ray CG: Shems Medical Microbiology 5th Editon Awww.acceyanK3,rayCg:sherrisMedicalmicrobIology,sthedition medicine. com 2016/5/12 Spirochetes-Junqi's Lecture for Medical students2016/5/12 Spirochetes -Junqi's Lecture for 4 Medical Students