Figure 4From: Immunohistochemical localization of mu opioid receptor in the marginal division with comparison to patches in the neostriatum of the rat brainPhotographs of coronal sections of the caudal part of the neostriatum (St) illustrating the presence of MOR in the MrD. No obvious "patches" of MOR-immunoreactivity was seen. A: A figure at low magnification showed dense accumulation of nerve fibers of MOR-immunoreactivity in the MrD and in the globus pallidus (GP) as well, and weak staining in the rest of the St. B: At higher magnification, the fusiform cell bodies exhibited MOR-immunoreactivity in puncta within parallel-arranged nerve fibers in the MrD (the arrow in B). C: The cell bodies and their dendrites stretched dorsoventrally were showed in the MrD (arrows in C). Scale bars: A, 200 um; B, C, 50 um.Back to article page