Questions

Where do the most 90 percent of axons from the retina project to?

Where do the most 90 percent of axons from the retina project to?

The axons of the M and P retinal ganglion cells travel in the retina optic nerve fiber layer to the optic disc where they exit the eye. Most of the axons travel to and terminate in the lateral geniculate nucleus of the thalamus.

What is the relationship between the retina optic nerve and brain?

In the brain, the optic nerve transmits vision signals to the lateral geniculate nucleus (LGN), where visual information is relayed to the visual cortex of the brain that converts the image impulses into objects that we see.

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What is optic nerve in human eye?

The optic nerve is a bundle of more than 1 million nerve fibers. It transmits sensory information for vision in the form of electrical impulses from the eye to the brain. Damage to an optic nerve can cause loss of vision. The type of vision loss and its severity depends on where the damage occurs.

How many pulses does the eye send to the brain every second?

From the paper you refer to here we can estimate that the human retina communicates with the brain at a rate of 10 million bits per second or 106 bits per second.

Is optic nerve part of brain?

In sum, the optic nerve is uniquely a part of both the eye and the brain. It is embryologically the brain’s envoy to the eye and functionally the eye’s envoy to the brain.

What percentage of ganglion cell axons do not cross at the optic chiasm?

In humans, about 60\% of these fibers cross in the chiasm, while the other 40\% continue toward the thalamus and midbrain targets on the same side. Once past the chiasm, the ganglion cell axons on each side form the optic tract. Thus, the optic tract, unlike the optic nerve, contains fibers from both eyes.

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What is the path from the retina to the brain?

Optic nerve: This cranial nerve sends visual information from your retina to your brain. It consists of more than 1 million nerve fibers. It’s a busy highway!

What part of the brain controls your eyes?

Occipital lobe
Occipital lobe. The occipital lobe is the back part of the brain that is involved with vision.

What would happen if the retina become disconnected from the optic nerve?

A detached retina occurs when the retina is pulled away from its normal position in the back of the eye. The retina sends visual images to the brain through the optic nerve. When detachment occurs, vision is blurred. A detached retina is a serious problem that can cause blindness unless it is treated.