part of part of surrounds contributes to morphology of mouth oral opening lip BTO:0001647 CALOHA:TS-0558 EMAPA:32839 FMA:59816 GAID:76 MA:0000343 MESH:D008046 One of the two fleshy folds which surround the opening of the mouth. OpenCyc:Mx4rvVi4U5wpEbGdrcN5Y29ycA Surface structure that is one of the two fleshy folds surrounding the opening of the mouth.[TAO] TAO:0007006 UBERON:0001833 UMLS:C0023759 VHOG:0000677 ZFA:0007006 galen:Lip labia oris labial lips uberon surface structure