Category: S

Pertaining to a sensory nerve.  

Microscopic patch of fragmented nerve around amyloid deposits found in the cerebral cortex of normal elderly people; found in larger amounts in people with Alzheimer’s disease. Spherical formations consisting mostly of degenerated brain cells that impede circulation in the brain arteries, caused by cerebral arteriosclerosis. A spherical deposit of beta amyloid in brain areas in…

Position of lying on the back with the head elevated 8 to 10 inches and the knees flexed. Placement of a patient with the head of the bed elevated at least 30 degrees. A position in which the patient lies on the back with the trunk elevated at an approximate 30-degree angle.  

Oily secretion of sebaceous glands. A secretion of fatty material from the sebaceous glands. An oily substance secreted by a sebaceous gland, which makes the skin smooth. It also protects the skin against bacteria and the body against rapid evaporation of water. Secretion of the sebaceous glands, containing fat and cellular debris. With sweat, it…

A form of treatment for varices in which a sclerosing solution is injected into a vein. The treatment of a varicose vein by injecting a sclerosant agent into the vein, and so encouraging the blood in the vein to clot. Treatment of varicose veins by the injection of an irritant solution. This causes thrombophlebitis, which…

An intradermal skin test to detect immunity to diphtheria; a positive result indicates lack of immunity or negative immunity. A test to determine immunity to diphtheria. A test to see if a person is immune to diphtheria [Described 1908. After Bela Schick (1877-1967), paediatrician in Vienna, Austria, and New York, USA.] Determination of susceptibility to…

The surgical removal of a fallopian tube and an ovary. Surgical removal of the ovaries and fallopian tubes. This procedure is used to treat cancer of the ovary and some cases of pelvic inflammatory disease. The fallopian tube is usually removed with its adjacent ovary, because the tube is typically damaged by the same condition…

Surgical excision of a portion of a sympathetic nerve. The procedure causes dilation of the blood vessels affected by the interrupted nerve, resulting in improved blood supply to tissue supplied by those vessels. A surgical procedure that interrupts some part of the sympathetic nervous system. A surgical operation to cut part of the sympathetic nervous…

Harsh, high-pitched sound during respiration due to obstruction of air passages. Noisy, labored breathing. Sharp high sound made when air passes an obstruction in the larynx. An abnormal, high-pitched sound that accompanies breathing, usually on intake of breath, because of narrowing or obstruction of the breathing passages, as in croup, throat infections, or tumors in…

Outermost or horny layer of the epidermis. Horny, outermost layer of the epidermis, containing dead cells that slough off; it IS thick over the palms and soles, thinner in more protected areas. Also called hony layer.