tubal air cells of pharyngotympanic tube
tub·al air cells of pha·ryn·go·tym·pan·ic tube
(tū'băl ār selz fă-ring'gō-tim-pan'ik tūb)Occasional small air cells in the inferior wall of the pharyngotympanic tube, near the tympanic orifice, communicating with the tympanic cavity.
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