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. Author manuscript; available in PMC: 2016 May 23.
Published in final edited form as: J Comp Neurol. 2012 Oct 1;520(14):3070–3087. doi: 10.1002/cne.23094

Figure 7.

Figure 7

A: Silver-intensified cobalt injection into one side of the superior protocerebrum resolves an ensemble of about 12–15 identical terminals in the upper layer of the fan-shaped body of Calliphora erythrocephala. This preparation further demonstrates that a palette of different techniques is required to resolve all possible types of neurons invading any part of the brain, including the central complex. B: Silver-intensified cobalt injection into one side of the superior intermediate protocerebrum (SIP) reveals the cell bodies of numerous local interneurons (bracketed, lin). Alone, these 25–30 neurons provide such a dense mass of processes that single arborizations cannot be distinguished. Two tracts connect this mass of fibers with the central complex. One provides two morphological types of terminals to the superior arch (SA) and its lateral swellings (the flanges, FLA). Another fiber projects downward to supply both asymmetric bodies (ASB) with blebbed arborizations.