The signals travel through the nerves of your hand to your spinal cord and then to your brain. Hope this helps.
Answer:
A federal law called the Health Insurance Portability and Accountability Act (HIPPA) give you the right to see and get a copy of your health record. Most health insurance plans and health care providers- including doctor's office, clinics, hospitals, pharmacies, labs, and nursing homes- most follow this law.
If your body is lacking a substance like water or salt it will reabsorb some of it,