part of part of has part has part adjacent_to contributes to morphology of retina uvea sclera optic choroid ZFA:0005229 choroidal VHOG:0001568 EV:0100347 UMLS:C0008520 MP treats posterior uvea and optic choroid as distinct EMAPA:19077 MA:0000263 BTO:0001829 GAID:913 vascular layer containing connective tissue, of the eye lying between the retina and the sclera. The choroid provides oxygen and nourishment to the outer layers of the retina. Along with the ciliary body and iris, the choroid forms the uveal tract[WP]. UBERON:0001776 choroidea TAO:0005229 check choroid vs choroid layer; check ZFA/TAO placement - no homology assertion in VHOG. Note this is entirely in the posterior region of eyeball in ZFA choroid CALOHA:TS-2054 optic choroid posterior uvea eye choroid uberon FMA:58298 choroidea chorioid choroid coat MESH:D002829 posterior segment of eyeball vasculature of eye anterior uvea chorioretinal region