Small Brain Disease Gray Matter -

For example, we now know that grey matter lesions, as well as a decrease in grey matter also known as brain volume loss, are closely associated with physical and cognitive changes caused by MS. The human brain has a wafer-thin layer of folded grey matter on the surface, and white matter on the inside. The white matter consists of more than 100,000 kilometres of nerve fibres which connect parts of the grey matter with each other, and with the spinal cord and the rest. Jul 27, 2017 · Supratentorial white matter disease is a serious concern. The cerebrum is the largest part of the brain. Most occur in the white matter. White matter disease is a chronic condition. When lesions appear, the pathways are interrupted, and this results in an inability to pass directions to the body's central nervous system from the gray matter. In contrast, cortical gray matter, as well as parts of the brain stem such as the midbrain and medulla, have robust collateral blood supply, thus minimizing the risk of ischemia. The deep penetrating vessels supplying the white matter become narrowed by arteriosclerosis and lipohyalin deposits. If the nervous system were a computer network, gray matter – a non-myelinated portion that contains nerve cells and capillaries – would be the computers and white matter the cables. Although diseased white matter impairs the nervous system much like broken, frayed or poorly operating cables impair a computer network, research was mostly focused on gray matter until Charles DeCarli came along.

Yes, your brain is a muscle, but about 70% of its gray and white matter is composed of fat. And it's not just any fat; it's the long-chain polyunsaturated fats that are part of the cell membranes. It is the narrowing of the blood vessels causing a significant reduction of the blood supply to the brain tissues. It is also known as small vessel disease. It is incidentally picked up in a brain scan such as MRI magnetic resonance imaging.

Grey matter contains most of the brain's neuronal cell bodies. The grey matter includes regions of the brain involved in muscle control, and sensory perception such as seeing and hearing, memory, emotions, speech, decision making, and self-control. For that matter, cerebral small vessel disease is also a somewhat non-specific finding, as it can be the result of a variety of different processes or disorders affecting the small blood vessels. I don’t think fatigue and lack of drive are particularly associated with cerebral SVD, although it also might depend on just which parts of the. Jan 20, 2017 · The human brain consists of about 60% white matter and 40% gray matter. You might think that the brain is mostly gray matter, as it certainly looks that way, but in actuality there is more white matter in the brain. White matter is the infrastructure of the brain and includes the long nerve axons and their protective layer of fat, called myelin.

Aug 16, 2017 · Historically, gray matter was typically considered the brain’s organ grinder, and white matter was just the monkey.

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