Fig. 5.

SEM micrograph of a nerve cell in the temporal cortex of the AD brain. The SEM micrograph shows a nerve cell of the AD brain fixed with potassium dichromate and stained with ammonium molybdate. The nuclear envelope (NE) shows an intact shape. Intranuclear structures such as the nucleolus, heterochromatin (H, bright region), and euchromatin (E, dark region) are well preserved. In the center of the nucleolus, pars amorpha (arrowhead) is clearly observed. Two dendrites (D) branches from the cytoplasm (dagger) of the nerve cell. Due to postmortem changes, the extracellular space (double dagger) is enlarged. NP, neuropil. Scale bar, 2μm.