Figure 5

The location and cellular morphology of the marginal division (MrD). A: The MrD is at the caudomedial edge of the neostriatum (St) and surrounding the rostrolateral of the globus pallidus (GP). B: More than 90% neurons in the striatum are medium-sized, round or multipolar neuronal cells with many long dendrites radiating from the neuronal cell bodies. C: The neuronal somata in the MrD are fusiform in shape with their long axes running parallel to the border between the St and the GP.