transverse palatine fold

trans·verse pal·a·tine fold

[TA] 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(s): plica palatina transversa [TA], ruga palatina, transverse palatine ridge