Bulimia susceptibility gene: A gene that determines the susceptibility to developing bulimia, one disorder in the spectrum of eating disorders. There is now a substantial literature showing that bulimia is strongly familial and that the pronounced familial nature of bulimia is due largely to the additive effects of a number of genes. One bulimia susceptibility gene is known to be linked to chromosome 10p (the short arm of chromosome 10). Another susceptibility gene for bulimia may be on chromosome 14.
Bulla: A fluid-filled blister more than 5 mm (about 3/16 inch) in diameter with thin walls. A bulla on the skin is a blister. A bulla on the pleura (the membrane covering the lung) is also called a bleb. In Latin a bulla was a “bubble, stud or knob.” It referred to any rounded protrusion, […]
Bullae: More than one bulla, a bulla being a blister more than 5 mm (about 3/16 inch) in diameter with thin walls that is full of fluid. Blisters on the skin are called bullae. In Latin a bulla (plural: bullae) was a “bubble, stud or knob.” It referred to any rounded protrusion, particularly one that […]
- Bullous pemphigoid
A disease characterized by tense blisters on the skin. The condition is caused by antibodies that accumulate abnormally in a layer of the skin called the basement membrane. The antigen of this autoimmune disease is localized to the hemidesmosome. Most cases of the disease are in older people but the disease can affect younger people, […]
Bumps: The raised area of a bump or bruise results from blood leaking from these injured blood vessels into the tissues as well as from the body’s response to the injury. A purplish, flat bruise that occurs when blood leaks out into the top layers of skin is referred to as an ecchymosis.
Bundling: A term employed by the FDA (the US Food & Drug Administration) that refers to the inclusion of multiple devices or multiple indications for use for a device in a single premarket submission, including products subject to the device and biologics license application (BLA) authorities, for purposes of review and user fee payment. In […]