The sapphire, together with the ruby, are members of the corundum group, which is the mineralogical name for aluminium oxide that crystallised into gemstones a long time ago as a result of pressure and heat at a great depth.
Vascular Neurology Doctors and Physicians (Vascular Neurologists) Vascular neurology is the study and treatment of vascular diseases of the nervous system. A neurologist is a physician who diagnoses and treats nervous system disorders. A vascular neurologist treats patients who have disorders of the veins and arteries in the nervous system. Diseased vessels that provide circulation to the nervous system can generate problems such as a stroke or hemorrhage that affects the brain or spinal cord.
Neurology is the branch of medicine that specializes in the treatment of disorders of the nervous system, including the brain, spinal cord, and nerves. The healthcare provider who specializes in neurology is called a neurologist. After completing medical school, healthcare providers specializing in adult neurology complete one year of residency in internal medicine and at least three years of neurology residency.