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. 2010 Mar 15;2:2. doi: 10.3389/fnsyn.2010.00002

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Copyright © 2010 Rollenhagen and Lübke.

This is an open-access article subject to an exclusive license agreement between the authors and the Frontiers Research Foundation, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited.

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Number, shape and location of AZs. Two representative examples of AZs (red areas) found on simple (A1) and complex (A2) spiny excrescences (blue) taken from an adult rat. Simple spines had only a single or at most two AZs whereas complex spines had up to eight AZs. Note, also the different shape and size of individual AZs that formed ring- or patch-like arrangements. Scale bar: 1 μm. (B) Histogram showing the distribution of surface areas of AZs for adult MFBs. (C) Histogram of the distribution of nearest-neighbor distances between centers of gravity of all AZs for adult MFBs (modified from Rollenhagen et al., 2007a).