Urology Clinic. GW Medical Faculty Associates. The George Washington University. 2150 Pennsylvania Avenue, NW. Washington, DC 20037. PURPOSE. Laparoscopic Simple Nephrectomy is a minimally invasive technique to remove the. entire that is usually used as a treatment for poorly functioning kidneys.
White matter is a vast, intertwining system of neural connections that join all four lobes of the brain (frontal, temporal, parietal, and occipital), and the brainâs emotion center in the limbic system, into the complex brain maps being worked out by neuroscientists.
In section, myelin is white whereas the gray matter is that color due to all the gray nuclei contained in the cells that make it up. The white matter is found in the inner layer of the cortex, the optic nerves, the central and lower areas of the brain or brainstem, and surrounding the central shaft of gray matter in the spinal cord.