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Olfactory bulb and nasal mucosa of a newborn rat, anteroposterior section

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Santiago Ramón y Cajal's drawing of an anteroposterior section of the olfactory bulb and nasal mucosa of a newborn rat. Legend: (A) Olfactory epithelium situated below the cribriform plate; (a) bipolar cell, (b) epithelial or supporting cell. (B) Dermis of the mucosa and bundles of olfactory fibers. (C) Cribriform plate. (D) Olfactory nerve layer. (E) Olfactory glomerular layer. (F) External plexiform layer. (G) Mitral cell body layer. (H) Internal plexiform layer. (I) Granule layer. (c) Cartilage. (e) Olfactory nerves. (f) Arborization of olfactory axons in the glomeruli. (g) Central axon of an inferior tufted cell. (h) Mitral cell. (i) Granules. (j) Epithelial cells. (n) More inferior granule. (m) Terminal filament of epithelial cells. (o) Large stellate cell. (Source: Ramón y Cajal S. Origen y terminación de las fibras nerviosas olfatorias [Origin and termination of the olfactory nerve fibers]. Gaceta Sanitaria de Barcelona 1890-1891:3; 133-139, 174-181, 206-212. See: Shepherd GM, Greer CA, Mazzarello P, Sassoè-Pognetto M. The first images of nerve cells: Golgi on the olfactory bulb 1875. Brain Res Rev. 2011;66[1-2]:92-105. Public domain.)