What Nerve Carries Visual Information From The Retina To The Brain?
This is a question that scientists are trying to answer with exciting results. We know visually, that the brain has about one hundred million neurons in the macula region of the brain. Neurons are the little figurines that dot the surfaces of each vertebrae in the brain. They communicate with the rest of the body by transmitting and receiving messages. Neurons come in the form of synapses, where they hook up to other neurons, and communicate with them. Neurons can trigger action in the body, which is what the scientists were interested in studying.
The scientists found that there are eighty-seven billion things happening at a second in our brains. When the optic nerve, which carries the information from the eye to the brain, is cut, the life of the optic nerve does not end. The nerves grow back, and a person is able to see again. The problem was, while we are alive, the optic nerve keeps sending the information from the eye to the brain, and if the cut is made near the optic nerve, the information does not get to the brain. If it is cut somewhere else in the body, the information is sent to another part of the body and the person is able to see.
So, how do we know which nerve is carrying the information from the eyes to the brain? The answer lies in the structure of the nerves, and the arrangement of their branches. Nerves come in various shapes and sizes, depending on where they are placed inside the body. Some nerves carry visual information from the eyes directly to the brain, while other cables carry information from the brain directly to the eyes.
There is a great deal of information processing going on in the brain, even without a consciousness. There is the conscious mind, which decides what is important, and what is not. There is the subconscious mind, which is largely responsible for generating new thoughts and concepts. Then there is the reptilian part of the brain, which gets information from the environment and makes decisions about behavior. We all have some sort of built in mental machinery that is responsible for the way we live our lives. Visualized or not, all of us are constantly using at least some of our faculties.
The question of which nerve carries visual information from the retina to the brain is, however, difficult to answer. The best idea is to imagine the process that a nerve in our eye does when light is shone onto it. The retina’s receptive layer must absorb the light, and then the nerve layers receive the information about the light that has been absorbed. The brain’s processing of this information will depend on the way that each of these layers receives the information. For example, the superficial layers, or photoreceptors, which are responsible for receiving color information, might receive the blue rays of light, while deeper layers, called retinotrophy fibers, might only receive the red rays of light.
In order to answer the question, “Which nerve carries visual information from the retina to the brain,” it is necessary to know more about how the entire nervous system works. However, this is beyond the scope of this article. If you would like to learn more about how the brain produces mental pictures, or how the nervous system generates thought, then please visit my site. You can learn much more about this fascinating topic in the future articles.
