Unlike Alzheimer's disease, which shrinks the hippocampus causing progressive memory loss, white matter disease is a more diffuse mind-robbing condition that targets small blood vessels deep within the brain's white matter. The disease hardens the tiny arteries, gradually restricting nutrients to white matter -- the connections between brain regions involved in executive abilities such as planning, organizing, problem-solving, and attention.
The eye is a part of the nervous sytem, which is essentially a network of neurons that coordinate actions and transmits signals throughout the body. There are two parts to the â¦ nervous system: central and peripheral.he nervous system. Your eyes are part of your brain. The majority of. your brain surface is light-sensitive.
The entire pathway, made up of the retina, the optic nerve, chiasm and tracts, the lateral geniculate bodies, the optic radiation and the visual (striate cortex), can be regarded as part of the central nervous system.he visual cortex is the last part of the optic pathway and processes the information received from the retina. A large portion of it is occupied by the area which corresponds to the macula lutea of the retina.