part of part_of has part has_part Danio rerio 斑马鱼 uvea 葡萄膜 pars iridica retinae the pigmented middle of the three concentric layers that make up an eye, consisting of the iris, ciliary body and choroid[WP,edited]. tunica vasculatis oculi tunica vasculosa bulbi tunica vasculosa of eyeball uvea uveal tract vascular layer of eyeball 由虹膜、睫状体和脉络膜组成的三个同心层的色素层[WP，编辑]。 眼球的血管层 眼球血管膜 眼球视网膜血管 葡萄膜 葡萄膜(uveal tract) 视网膜虹膜部 iris 虹膜 ciliary body 睫状体 optic choroid 视神经脉络膜 anterior segment of eyeball 眼球前段 ectoderm-derived structure 外胚层衍生结构 organ component layer 器官组件层 structure with developmental contribution from neural crest 神经嵴发育的结构