The eye is partially protected by its placement in the bony_orbit.
The outer surface of the eye is cushioned with fatty tissue and has six extrinsic_muscles. The extrinsic muscles help control the movement of the eye.
A part of the optic_nerve is clearly visible on the posterior surface of the eye.
The sclera (white of the eye), which surrounds the rim of the cornea, is part of the protective fibrous_tunic that covers the eye. The cornea is actually the most anterior portion of the fibrous tunic. The cornea is transparent and allows light to enter the eye.
The section of the internal eye reveals the lens which is a biconvex structure that looks opaque when preserved.
The black, stripy structure that surrounds the lens is part of the ciliary_body. The ciliary body contains ciliary_muscles, which help control the movement of the lens.
The choroid_coat is a dark pigment layer, which prevents scattering of light after it enters the eye.
The retina is a delicate white membrane that lies on the surface of the choroid coat.
The optic_disc (blind spot) is the exit point of the optic nerve.
The concavity of the eye is filled with a viscous substance, which is called the vitreous_humor.