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Diagram from the tongue of an intact mouse to illustrate the divisions used for analyses. The mouse tongue was divided into anterior (anteriormost 1 mm) and intermediate (next 4 mm) divisions for anterior–posterior analyses and medial (midline to 350 µm lateral from midline), middle (next 550 µm), and lateral divisions for medial–lateral analyses. CV, circumvallate papilla; FP, foliate papillae; IE, intermolar eminence. Scale bar = 1 mm.
