bounding layer of continuous with contributes to morphology of mouth mucosa pharyngeal mucosa digestive system skin of lip mouth mucosa FMA:59660 mouth organ mucosa buccal mucosa NCIT:C77637 mouth mucosa tunica mucosa oris oral mucosa Wikipedia:Oral_mucosa MESH:D009061 MA:0002794 A mucous membrane that lines the mouth. mucosa of mouth EMAPA:26937 oral mucous membrane mucous membrane of mouth CALOHA:TS-0716 GAID:951 mucosal lining of mouth mouth mucous membrane BTO:0002860 tunica mucosa oris oral part of viscerocranial mucosa