part_of part of part of surrounds contributes to morphology of mouth oral opening face lip BTO:0001647 ZFA:0007006 VHOG:0000677 MESH:D008046 One of the two fleshy folds which surround the opening of the mouth. MA:0000343 lips GAID:76 NCIT:C12220 TAO:0007006 FMA:59816 CALOHA:TS-0558 SCTID:181221003 Wikipedia:Lip EMAPA:32839 UBERON:0001833 galen:Lip surface structure