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.
The optic nerve exits through the back of the eye. The nerve is made up of fibers which originate in nerve cells located in the retina, the light-sensitive film coating the inside of the eye.In the normal state, the optic nerve head looks much like a doughnut, with the outer ring consisting of the nerve tissue.or these reasons, examination of the optic nerve and its ability to transmit the visual message is an essential portion of the examination for glaucoma. In most patients, the optic nerve can be readily examined.