Why is gray matter gray and white matter white?

Answer 1

All nerve tissue is grey by default due to a lack of any pigmented organelles as they would be almost usless. The white matter on the other hand is white because of an insulator wrapped around it called myelin which is made of fat. The grey matter is the cell bodies of the neurones ans so there is little need for insulation but the white matter is the axons and thus and insulator is present to speed up the action potential.

Answer 2

The whole brain is not gray matter, just the surface of it and parts of the interior, and there is other gray matter in nerve tissue along the spinal column. The gray matter is called gray because that is its color, and it is often referred to because people think of it as where most rational thinking is done.

Answer 3

I don't know the spiritual significance of the colour: Gray, but I will say that as GOD fashioned the anatomy of the body together, He also breathed Life into us.

The brain reflects the mind, Blood reflects the spirit. The Natural heart, the spiritual heart, the belly, the soul.

Answer 4

Gray matter is unmyelinated and White matter is myelinated

Answer 5

In the nervous system, grey matter does not containmyelinated neurons. In white matter, the neurons have myelinated axons for faster transmission of the impulse.

Answer 6

Grey matter is grey because the axons in that part of the brain are unmyelinated.

Answer 7

It's grey because it is unmylenated.

Answer 8

Because your brain is grey.