Which nerve transmits the image from the retina to the brain?

Which nerve transmits the image from the retina to the brain?

• A. Oculomotor nerve
• B. Trigeminal nerve
• C. Optic nerve
• D. Vestibulocochlear nerve

Answer: (C)

Visual information travels from the retina along the optic nerve, the second cranial nerve. This nerve carries the electrical signals generated by retinal ganglion cells toward the brain. After exiting the eye, the optic nerve fibers partially decussate at the optic chiasm and then continue as the optic tract to the thalamus, specifically the lateral geniculate nucleus, before relaying signals via the optic radiations to the visual cortex in the occipital lobe. Other nerves listed have different jobs: the oculomotor nerve controls most eye movements and pupil constriction, the trigeminal nerve provides facial sensation and motor function for chewing, and the vestibulocochlear nerve handles hearing and balance.

Visual information travels from the retina along the optic nerve, the second cranial nerve. This nerve carries the electrical signals generated by retinal ganglion cells toward the brain. After exiting the eye, the optic nerve fibers partially decussate at the optic chiasm and then continue as the optic tract to the thalamus, specifically the lateral geniculate nucleus, before relaying signals via the optic radiations to the visual cortex in the occipital lobe. Other nerves listed have different jobs: the oculomotor nerve controls most eye movements and pupil constriction, the trigeminal nerve provides facial sensation and motor function for chewing, and the vestibulocochlear nerve handles hearing and balance.