Images of trabecular bone and osteoblasts in osteoarthritic women under TEM. A. Trabecular bones in femoral heads of women with arthritis showed tightly arrayed structure with intercrossing fibrils. (×7400). B. No obvious space among the trabecular bones. (×3400). C. Part of osteoblasts integrated with trabecular bone. (×5800). D. One side of osteoblast integrated. (×7400). E. Vision field was full of osteoblasts. (×3400) F. Lots of rough endoplasmic reticulum and calcium salts in the osteoblasts. (×4200).