part of part of has part has part contributes to morphology of multi-tissue structure uvea iris ciliary body anterior segment of eyeball ectoderm-derived structure anterior uvea Front (ventral) portion of the vascular, pigmentary, or middle coat of the eye, including the ciliary body and the iris. Haller tunica vascula UBERON:0011892 anterior part of uveal tract anterior uveal tract anterior vascular layer of the eyeball anterior vascular tunic of the eye ciliary body and iris tunica vasculosa bulbosa uberon vasculosa oculi ventral uveal tract