What conduct impulses from the brain?

Is there such thing as ghosts? What causes your foot to become numb for months? Would cramping since ovulation and 10 days after ovulation light pink discharge mean pregnancy? Is white fluffy material on stool with blood sign of cancer? Are you having a miscarriage if you have a glob of light brown discharge with a clear white sack-like thing around it? What is different about mrs. turner's appearance in their eyes were watching god? Why doesn't damage in the right visual cortex result in blindness of the right eye? What acts as communication wires for the central nervous system? Will the white distilled vinegar cause tooth decay loss of enamel or gum disease? What age do kids get all their teeth? What is the superficial epithelial portion of the skin called? Is there a cure for the Harlequin Baby Syndrome? What does blind postscript mean? Why are hCG levels higher in the morning? What is the bone that articulates with the parietal and temporal bones and forms the posterior inferior part of the cranium? How is getting a vaccine like having a disease? Why aren't my breasts sore a week before my period like they usually are..could it be because i was on birth control and now I stopped or because I'm pregnant? Cerebral palsy involves crippling neuromuscular problems it usually is a result of a lack of what to the infant's brain during delivery? Is 32G bigger or smaller than 32FF? How are Autoimmune diseases classified?