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. Author manuscript; available in PMC: 2011 Apr 1.
Published in final edited form as: Prog Neurobiol. 2010 Jan 29;90(4):471–497. doi: 10.1016/j.pneurobio.2010.01.001

Fig. 1. Glia in the adult fly lamina.

Fig. 1

The lamina of the adult optic lobe of the fly is populated by six distinct classs of glia. These include (from distal to proximal) two types of surface glia - the fenestrated and pseudocartridge glia; two types of cortex glia - the distal and proximal satellite glia; and two types of neuropile glia - the epithelial and marginal glia. Septate junctions (sj) connect the distal satellite glia and are an integral part of the blood brain barrier. Tight junctions (tj) are more common in the proximal glial layers. The outermost glia also contain clathrin coated vesicles (cv) and engage in clathrin-mediated endocytosis. Figure modified from Saint-Marie and Carlson (1993a).