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. Author manuscript; available in PMC: 2016 Aug 25.
Published in final edited form as: Brain Res Bull. 2007 Jan 3;71(6):601–609. doi: 10.1016/j.brainresbull.2006.12.002

Figure 4.

Figure 4

(a) An electron micrograph showing a PHA-L labeled fiber (F, arrow head) from the mPFC forming an asymmetric contact with an unlabeled dendrite within RE and several (four) unlabeled asymmetric contacts (A, arrow heads) with the same dendritic process. (b) A PHA-L labeled fiber (F) from the mPFC in close proximity but without synaptic contact on a labeled RE cell body (C) and nucleus (N). (c) An unlabeled symmetric contact (A, arrow head) with a labeled RE cell body (C). Scale bar, 1 µm.