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 neuritis is an inflammation that affects the myelin lining of the optic nerve, which transmits visual stimuli to the brain. The optic nerve is actually a nerve tract of axons that originate in the ganglion cells of the retina in the back of the eye. Nerve tracts are the information pathways in the brain. The optic nerves are the only nerve tracts not located entirely within the brain. The optic nerves carry visual information from the retina to the area of the brain that recognizes vision (the occipital cortex). Optic neuritis can occur in children or adults and may involve either one or both optic nerves.