Site-Specific Distribution of CD68-Positive Microglial Cells in the Brains of Human Midterm Fetuses: A Topographical Relationship with Growing Axons
Figure 5
GAP43-positive nerve fibers in a brain at 16 weeks. The same specimen as shown in Figure 2. Panel (a) displays GAP43-positive nerve fibers in and around the putamen: arrows indicate a bundle from or to the frontal lobe cortex; stars indicate a candidate of the habenulointerpeduncular tract; arrowheads indicate a positive zone along the pia. The anteroinferior part of the corona radiata also contained GAP43-positive fibers (see also Figures 1(a) and 1(b)). Panel (b) exhibits a cluster of GAP43-positve fibers near the ventral hippocampus (see also Figures 4(d) and 4(e)). Panel (c) includes the cerebellum, tectum, midbrain, pons, and inferior olive: arrows indicate the transpontine corticofugal tract; arrowheads indicate fibers passing through the olive (see also Figure 2(e)). Panel (d) shows the rostral part of the transpontine corticofugal tract (see also Figure 2(d)). Panel (e) displays the optic tract and a candidate of the rostral end of the fornix (star; see also Figure 2(a)).
