optic nerve
Sign in to savesecond cranial nerve, which connects the eyes to the brain
AI overview
The optic nerve is the nerve that carries visual information from your eyes to your brain, allowing you to see. It's the second of the major nerves that branch directly from the brain and is essential for your vision to work.
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Article
In neuroanatomy, the optic nerve, also known as the second cranial nerve, cranial nerve II, or simply CN II, is a paired cranial nerve that transmits visual information from the retina to the brain. In humans, the optic nerve is derived from optic stalks during the seventh week of development and is composed of retinal ganglion cell axons and glial cells; it extends from the optic disc to the optic chiasma and continues as the optic tract to the lateral geniculate nucleus, pretectal nuclei, and superior colliculus.
Structure