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 sex of a human embryo is not determined until some time after the cells start to divide. Concepts Eye is an organ that enables vision. Parts of the eye have a specific purpose (lens, cornea, muscle, retina (cones and rods) optic nerve, eye lid, tear ducts, tears, eye lashes). A lens can focus an image.