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. 2016 Mar 31;10:13. doi: 10.3389/fncir.2016.00013

Figure 1.

Figure 1

Vasopressin immunopositive fiber distribution through the rostro-caudal extent of rat habenular complex. Panels (A–I) dark-field photomicrographs of AVP immunoreaction on coronal sections at the rostro-caudal Bregma levels indicated in each panel. Vasopressin immunopositive fibers densely innervate the medial division of lateral habenular complex (LHbM), i.e., the superior subnucleus (LHbMS), the central subnucleus (LHbMC), remarkably its parvocellular subnucleus (LHbMPc), and the marginal subnucleus (LHbMMg). Inset of the panel (G) shows a drawing with the subnuclei mentioned. Note that highest density of AVP+ fibers is observed inside the LHbMC (panels F–H arrows). Scale bars: 250 μm. D3V, dorsal 3rd ventricle; MHb, medial habenular complex; LHb, lateral habenular complex; SM, stria medularis; FR, fasciculus retroflexus.