Zhou Dynasty (c. 1050-256 BCE). 1  The Zhou dynasty (c.1050-256 BCE) conquers and succeeds the Shang; later generations seek to reclaim and preserve the idealized peace of the early Zhou (or Western Zhou) period.
Learning Center > Health Library > Optic Nerve. The optic nerve is located in the back of the eye. This structure is responsible for transferring the images we see from the retina to the brain. The front surface of the optic nerve, which is visible on the retina, is called the optic disc.
Optic Nerve eye-definition and function. Optic Nerve-the second cranial NERVE, which conveys nerve impulses from the EYE to the BRAIN. There are two optic nerves, one from each eye. The fibers that become the optic nerve originate in the occipital lobes of the cerebrum, in an area called the visual cortex.Each extends along structures called the optic tracts that pass through the temporal lobes and the center of the brain, converging in the optic chiasm.t appears as a pale circle, about the size of a pencil eraser, against the dark background of the retina. The retinaâs network of nerves extends from the optic nerve, gathering nerve impulses from the rods, cones, and other nerve cells in the retina.