Images of trabecular bone and osteoblasts in osteoporotic women under TEM. A. Strip-like plasma of osteoblast. (×7400). B. Spindly osteoblasts, some of which have double nucleoli. (×9700). C. Only a small quantity of rough endoplasmic reticulum and Glogi complex can be found. (×17500). D. One osteoblast was in the process of disaggregation. (×17500). E. Osteoblast above the trabecular bone. (×17500). F. Very little chromatin in the nucleolus. (×24000).