—The combined use of a computer and x rays that are passed through the body to produce clear, cross-sectional images.
Magnetic resonance imaging (MRI)
—An imaging technique that produces good cross-sectional images without x rays or other radiation sources.
—X-ray examination of the spinal cord after injection of a contrast substance or dye that shows up on x rays.
—A physical examination that focuses on the patient's nerves, reflexes, motor and sensory functions, and muscle strength and tone.
—Sudden, uncontrolled electrical activity in the brain resulting in characteristic twitching, or spastic, movements that may be accompanied by loss of consciousness.
—A group of drugs that are similar to the hormones produced by the cortex of the adrenal gland.
Ventricles of the brain
—The four fluid-filled chambers, or cavities, found in the two cerebral hemispheres of the brain, at the center of the brain, and between the brain stem and cerebellum, and linked by channels, or ducts, allowing cerebral fluid to circulate through them.
Joan Schonbeck R.N., The Gale Group Inc., Gale, Detroit,