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. 1997 Jan 1;17(1):251–266. doi: 10.1523/JNEUROSCI.17-01-00251.1997

Fig. 6.

Fig. 6.

Photomicrographs under dark-field illumination and polarized light of representative spinal cord sections at the Th1 level in four different cases after injection of WGA-HRP into the hand area of the primary motor cortex (right side). The left side of the cord is shown on the right. A, 5 d;B, 2.5 months; C, 5 months;D, adult (case 3). Note the increasing intensity of labeling with age in the dorsal part of lamina IX, the location of the lateral motoneuronal cell groups innervating hand muscles. Scale bar, 500 μm.