<prompt> The retina receives its blood supply from all, except:Posterior ciliary aeryCentral retinal aeryRetinal aeriesPlexus of Zinn and Haller aeries  <response>: D i.e. Plexus of Zinn and Haller aeries The retina has dual blood supply, the choroidal circulation central retinal aerial circulation. Uveal tract choroids is supplied by posterior ciliary aeries long sho and anterior ciliary aeriesQ. Posterior ciliary aeries do not supply retina directly, but indirectly. Plexus of Zinn supply the optic disc lamina cribrosa2 