the disk in the fundus of the eye marking the point at which the optic nerve enters; it is accompanied by blood vessels, is oval, light in color and the blind spot of the retina.
ARTERIOLES. In arterioles, the tunica intima consists of a continuous endothelium and a very thin subendothelial layer. In addition, a thin, fenestrated internal elastic lamina is present in larger arterioles but absent in terminal arterioles. Generally, the tunica media consists of 2 layers of smooth muscle cells.
What are smooth muscles?   Smooth muscle is a type of non-striated muscle, found within the tunica media layer of large and small arteries and veins, the bladder, uterus, male and female reproduct â¦ ive tracts, gastrointestinal tract, respiratory tract, the ciliary muscle, and iris of the eye.2 people found this useful.Chris Modisette. Smooth muscle is a type of non-striated muscle, found within the tunica media layer of large and small arteries and veins, the bladder, uterus, male and female reproduct â¦ ive tracts, gastrointestinal tract, respiratory tract, the ciliary muscle, and iris of the eye. 2 people found this useful. Chris Modisette.