The word stands for Light Amplification by Stimulated Emission of Radiation. Lumbar puncture A procedure for investigating or treating nervous system diseases by inserting a needle between the vertebrae at the base of the spine to tap cerebrospinal fluid and occasionally inject medication. Lumbar puncture is done under local anesthetic and takes about 20 minutes. Meninges Membranes enclosing the brain and spinal cord. The period of cessation of menstruation, usually occurring between the ages of 45 and 50.
Muscle relaxant A medication that relaxes tense muscles or muscles in spasm.
A term applied to a thin, flexible tube that can be passed through a nostril into the stomach via the throat. Nasogastric tubes are used for passing nourishment into the digestive system or for draining away digestive juices. Obstructed A term meaning blocked, usually referring to a passageway from one part of the body to another. Ophthalmoscope An instrument that includes a source of light used to view the interior of the eye. To tap firmly on the body with the fingers, used to map out the area of an organ and detect possible changes in the consistency of its tissues.