Grey matter and white matter (Association fibers, Commissural fibers, Projection fibers ) of CNS

Grey matter and white matter (Association fibers, Commissural fibers, Projection fibers ) of CNS The human brain is a very complex structure. Besides, there are parts of the brain we still do not know much about. More importantly, medicine and…

Grey matter and white matter (Association fibers, Commissural fibers, Projection fibers ) of CNS

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Grey matter and white matter (Association fibers, Commissural fibers, Projection fibers ) of CNS

The human brain is a very complex structure. Besides, there are parts of the brain we still do not know much about. More importantly, medicine and science still do not know the cure for numerous nervous system diseases and how to repair the damage.

Despite this, scientists have managed to discover a lot about this mysterious organ that is the node of our personality and life.

Dividing its anatomical structure into lobes, the left, and right hemisphere, and brain parts help us understand its structure and, more importantly, its functions and mechanisms in a better way.

A very common and meaningful classification of the brain structures refers to the gray and white matter diversification. In this article, we will discuss the nature of these two types of structures, their differences, significance, and functions.

Gray matter is peculiar for containing the neuron cell bodies. The scientific name for the neuron bodies is soma (1).

White matter is specific for containing myelinated axons (1). These structures are long relays. They extend out from the neuron bodies. As their color is whiteish, these structures are called the white matter.

The white matter contains the glial cells responsible for the production of myelin (the oligodendrocytes) and the astrocytes (1).

Axon tracts that represent the white matter are mostly found under the gray matter regions. This means they are located in deeper areas of the cerebellum and cerebrum.

In other cases, for example, the basal ganglia, the grey matter is embedded in the white matter. When it comes to the brain ventricles filled with fluid, they are also surrounded by white matter.

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