Figure 16From: A comparative analysis of the distribution of immunoreactive orexin A and B in the brains of nocturnal and diurnal rodentsOlfactory bulb. Photomicrographs of orexin A fibers in the olfactory bulb of the Long-Evans rat (A), grass rat (B), Syrian hamster (C), and degu (D). E/OV: Ependymal layer/Olfactory ventricle; GrO: Granular cell layer; Mi: Mitral cell layer. Scale bar = 300 μm.Back to article page