Assertion: palatine bone's margin | /r/HasProperty | rough
Facets:
Source sentences:
text: The posterior (or sphenoidal) surface includes the opening of the air cell (which connects with the sphenoidal sinus) and the margins of the opening are rough and serrated for articulation with the sphenoidal concha.
text: The plates are separated below by an angular cleft, the pterygoid notch, the margins of which are rough for articulation with the pyramidal process of the palatine bone.