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Periglomerular cells of a cat glomerular layer

Drawing by Cajal’s disciple Tomás Blanes Viale (1878-1900), showing periglomerular cells of a cat glomerular layer. Legend: (A) Cell branching into three glomeruli. (B-D) Biglomerular cells. (C-E) Monoglomerular cells. (a) Axon. (Source: Blanes T. Sobre algunos puntos dudosos de la estructura del bulbo olfatorio. Rev Trimest Microgr 1898;3:99-127. Instituto Cajal, Madrid, Spain. See: Figueres-Oñate M, Gutiérrez Y, López-Mascaraque L. Unraveling Cajal's view of the olfactory system. Front Neuroanat 2014;8:55. Creative Commons Attribution [CC BY] license, creativecommons.org/licenses/by/4.0.)