The ultrastructure of glia-like cells in lateral nerve cords of adult Amphilina foliacea (Amphilinida)

The ultrastructure of main lateral nerve cords (MCs) of adult A. foliacea w as studied. By examination of the serial sections it has been found that so me glia-like cells are located on a periphery of MC. The processes of glia- like cells surround MCs and penetrate into the cord and surround the group of adjacent axons and pairs of neurones. There is a fine extracellular matr ix between processes of glia-like cells. The numerous tight junctions occur between processes. The difference between the perykaryon's cytoplasm of gl ia-like cells in anterior, posterior and central parr of MCs was found.