muscle of digastric group digastric belly of digastric Either of the two muscles that comprise the digastric group (anterior or posterior). digastric belly uberon UBERON:0010940 SCTID:360772008 FMA represents this as a muscle belly, but this classification does not work well across mammals (pers. comm., FEED:rd), so we classify this is a distinct muscle organ here. digastric muscle FMA:46297 musculus digastricus belly of digastric muscle muscle body proper of digastric digastricus skeletal muscle organ