NCIt definition : The muscular extension of the hard palate which comprises the posterior of the oral
cavity and the floor of the nasal cavity.;
Alternative definition : NCI-GLOSS: The back, muscular (not bony) part of the roof of the mouth.; CDISC: The part of the roof of the mouth not supported by bone.; UBERON: The muscular, non-bony arch-shaped posterior portion of the palate extending
from the posterior edge of the hard palate.;