MRCP UK EXAMINATIONS

Detailed explanation-1: -The optic nerve is a bundle of more than 1 million nerve fibers. Also known as the second cranial nerve or cranial nerve II (CNII), it is the second of several pairs of cranial nerves. It transmits sensory information for vision in the form of electrical impulses from the eye to the brain.

Detailed explanation-2: -The optic nerve is critical to your vision. It’s an extension of your central nervous system, which includes your brain and spine. The optic nerve transmits electrical impulses from your eyes to your brain. Your brain processes this sensory information so that you can see.

Detailed explanation-3: -The retina is a soft, light-sensitive layer of nervous system tissue. The optic nerve carries signals from the retina to the brain, which interprets them as visual images.

Detailed explanation-4: -Optic nerve: This cranial nerve sends visual information from your retina to your brain.

Detailed explanation-5: -The optic nerve directs the afferent limb of the reflex pathway. Light stimulates the retinal ganglionic cells. The impulses travel through the optic nerve (CN II), which projects bilaterally to the pretectal nucleus in the midbrain, and then projects to the Edinger-Westphal nucleus.