Optic Nerve

Optic Nerve The structure indicated is the optic nerve (cranial nerve II). The optic nerve is the second cranial nerve and is responsible for vision. Similar to the first cranial nerve (olfactory nerve), the optic nerve is not a true nerve but is rather an extension of the brain (diencephalon), which means it is technically a part of the central, rather than peripheral nervous system. The primary sensory neurons are the bipolar cells of the retina; these synapse on ganglion cells, the axons of which form the optic nerve which then passes via the optic canal to join with the …

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