Arteries and Veins of the Normal Optic Fundus
The retinal arteries and veins emerge from the nasal side (left) of the optic disc. Vessels directed temporally have an arching course; those directed nasally have a radial course.
are brighter red and narrower than . Actually, the retinal arteries lack a muscular coat, so they are more correctly called arterioles. The vessels you see here supply and drain the inner retina, including the retinal ganglion cells and their axons and the bipolar cells. The outer retina, including the rods and cones and retinal pigment epithelium, is supplied by the choroidal circulation.
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