part_of part of part of develops from contributes to morphology of multi-tissue structure iris EV:0100345 BTO:0000653 Wikipedia:Iris_(anatomy) AAO:0010347 TAO:0001238 MESH:D007498 NCIT:C12737 anterior uvea ZFA:0001238 The adjustable membrane, composed of the stroma and pigmented epithelium, located just in front of the crystalline lens within the eye. SCTID:181164000 CALOHA:TS-0491 MA:0000273 EMAPA:19154 GAID:917 EFO:0004245 XAO:0000185 UBERON:0001769 VHOG:0000101 FMA:58235 ectoderm-derived structure optic vesicle anterior uvea