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Schematic drawing representing the anatomical organisation of the vomeronasal system (VNS) in a generalised tadpole. The main olfactory system (MOS) is also shown. AOB, accessory olfactory bulb; OE, olfactory epithelium; MOB, main olfactory bulb; VNO, vomeronasal organ. Dotted-line circles indicate the position of the external nares.
