Fig. 6: Multiplanar histology of the psalterium.

a Schematic illustration of the histological section planes: coronal (B), sagittal (C) and axial (D). b–d Floating sections stained for myelin (1:900 dilution, FluoroMyelin Green, F34651, Thermo Fisher Scientific, MA, US) and counterstained with Hoechst 33342 (1:2000 dilution, H3570, Invitrogen, Carlsbad, CA): b Coronal sections from caudal to rostral. BCC body of the corpus callosum, bF body of the fornix, CF commissura fornicis, CG cingulate gyrus, crF crus fornicis, M connective tissue membrane, SCC splenium of the corpus callosum, SP septum pellucidum. c Sagittal sections from left to right. d Axial sections from basal to dorsal.