Micrograph of the putamen (top-right of image) and external globus pallidus (bottom-left of image) showing the<unk>  (blue, diagonal, linear structures). H&E-LFB stain. The<unk> , also Wilson's pencils, pencil<unk>  of Wilson, and pencils of Wilson, are prominent myelinated<unk>  that connect the striatum to the globus pallidus. Their distinctive appearance allows the putamen to be identified on light microscopy.
Striatopallidal fibres
Geniculate fibers
Frontopontine fibers
Commissural fiber
Cerebrospinal fibers
Pyramidal tracts
Postganglionic nerve fibers
Preganglionic nerve fibers