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Transverse macroscopic section of the head of the fox at the level of the olfactory bulb (OB) showing its main topographic relationships. (1) Olfactory bulb; (2) Ethmoidal concha; (3) Choanas; (4) Zygomatic gland; (5) Zygomatic arch; (6) Tongue; (7) Mandible; (8) Buccolingual recess. Scale bar: 2 cm.
