Figure 7. A high-resolution image (4 × 4 × 4 nm3) of a Drosophila protocerebral bridge (in the central complex) reveals fine details of various organelles.
(a) an 8 × 8 µm2 area overview; (b) end-on and side views of microtubule, indicated by green arrows; (c) polyribosomes attached to the endoplasmic reticulum, indicated by blue arrows; and (d) synaptic vesicles, presynaptic T-bar, and postsynaptic density, shown in two different z planes. Video 4 shows the corresponding full z stack. Scale bar, 1 µm in (a) and 500 nm in (b)-(d).