Transmission electron micrograph illustrating the unusually prominent fibrous nuclear lamina (arrows) seen in many invertebrates such as this leech ganglion cell. From Fawcett (1966) Am J. Anat. 119:...

Glial cells in the nerve cord of the annelid worm, Aphrodita aculeata are rich in 10 nm filaments, and desmosomes are abundant. Figure 89 from Chapter 3 (Junctional Specializations) of 'The Cell, 2nd ...

The early days of electron microscopy provided the first views of cell ultrastructure. This electron micrograph shows the plasma membranes of two closely apposed glial cells from the central nervous ...