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I enjoy tourism and I am an open book who loved the outdoor life. I was born and raised in Cameroon in a small town called kumba. White matter is composed mainly of myelinated axons, and takes its color from the myelin.White matter includes all of the nerves, and much of the interior of the brain and spinal cord.Nerves that exit from the cranium are called cranial nerves while those exiting from the spinal cord are called spinal nerves.The nervous system derives its name from nerves, which are cylindrical bundles of fibers (the axons of neurons), that emanate from the brain and spinal cord, and branch repeatedly to innervate every part of the body.I'm sociable and purposeful person grow up in christian home i respect family values.
Typically, each body segment has one ganglion on each side, though some ganglia are fused to form the brain and other large ganglia.We began to understand the basic electrical phenomenon that neurons use in order to communicate among themselves, the action potential, in the decade of 1950 (Alan Lloyd Hodgkin, Andrew Huxley and John Eccles).It was in the decade of 1960 that we became aware of how basic neuronal networks code stimuli and thus basic concepts are possible (David H. The molecular revolution swept across US universities in the decade of 1980.The vertebrate nervous system can also be divided into areas called grey matter ("gray matter" in American spelling) and white matter.Grey matter (which is only grey in preserved tissue, and is better described as pink or light brown in living tissue) contains a high proportion of cell bodies of neurons.
The head segment contains the brain, also known as the supraesophageal ganglion.