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Ruga palatina

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ruga palatina --> transverse palatine fold

A masticatory vestige on the hard palate; one of several irregular, sometimes branching, crests of soft tissue that radiate from the region of the incisive papillae at their most anterior parts and extend a slight distance backward, crossing the hard palate and reaching laterally for variable distances.

Synonym: plica palatina transversa, ruga palatina, transverse palatine ridge.