Skip to main content
. 2015 Nov 6;9:140. doi: 10.3389/fnana.2015.00140

FIGURE 4.

FIGURE 4

Histological identification of cytoarchitectonics in the forebrain of the neonatal Tt. Four main nuclei can be identified in the forebrain subcortical gray matter (A–D), indicated with Times New Roman font and circled on photographs at representative coronal levels of the brain (Tt4, Tt5, Tt7; selected among those indicated in Figure 3 and indicated top left). anteriorly and posteriorly to levels Tt2 and Tt11, respectively, no subcortical gray matter is present (top right). Dark gray, gray matter; light gray, white matter (WM); wgm, subcortical white matter intermixed with gray matter (checked pattern); Cx, cerebral cortex; CC, corpus callosum; EC, external capsule; IC, internal capsule; LV, lateral ventricle (bent arrow in enlarged drawings on the left); e, ependyma. Note that nucleus B and ependyma of the lateral ventricle wall are separated by a mixture of white and gray matter in the absence of any thick, tightly packed cell layer which is typical of germinal layers in neonatal terrestrial mammals (arrowheads; see text). Scale bars, 100 μm.