vein formed by the union of the retinal veins; accompanies central arteries of the retina in the optic nerve
a workplace that serves as a telecommunications facility where lines from telephones can be connected together to permit communication
the innermost light-sensitive membrane covering the back wall of the eyeball; it is continuous with the optic nerve
a blood vessel that carries blood from the capillaries toward the heart
a distinctive style or manner
any of the vascular bundles or ribs that form the branching framework of conducting and supporting tissues in a leaf or other plant organ
a layer of ore between layers of rock
