Assertion: oropharynx's border | /r/CapableOf | extend into buccal mucosa
Facets:
value: superiorly
type: MANNER
Source sentences:
text: Its apex is in line with the tuberosity of the maxilla (behind the last upper molar); the lateral border extends superiorly into the buccal mucosa; medially, it blends with the anterior tonsillar pillar; and its base is formed by the distal surface of the last lower molar and the adjacent gingivolingual sulcus.