Ankyloglossia: A minor birth defect in which the flap of membrane attached to the underside of the tongue (frenulum) is too short. This shortened frenulum limits the mobility of the tongue. Ankyloglossia is also called tongue tie, from the folk belief that the anomaly causes feeding and speech problems. A child cannot feed or speak properly because the tongue is ‘tied.’ This antiquated belief is untrue.
- Ankylosing spondylitis
A form of chronic inflammation of the spine and the sacroiliac joints. Chronic inflammation in these areas causes pain and stiffness in and around the spine. Over time, chronic spinal inflammation (spondylitis) can lead to a complete cementing together (fusion) of the vertebrae, a process called ankylosis. Ankylosing spondylitis can sometimes be seen in patients […]
Ankylosis: Stiffness or, more often, fusion of a joint. From the Greek ankylsis, meaning stiffening of a joint.
- Ankyrin deficiency
Ankyrin deficiency: Known also as hereditary spherocytosis (HS), this is a genetic disorder of the red blood cell membrane clinically characterized by anemia, jaundice (yellowing) and splenomegaly (enlargement of the spleen), due to deficiency of ankyrin, a protein in the membrane of the red cell. In HS the red cells are smaller, rounder, and more […]
Anlage: 1. In biology, whatever precedes something else. 2. In embryology, a precursor or forerunner or a more mature structure. For example, the stomach anlage. 3. In psychoanalysis, a predisposition to a given trait or personality characteristic. Borrowed directly from the German for a plan or arrangement, derived from the verb anlegen meaning “to lay […]
- Annals of Internal Medicine
Annals of Internal Medicine: A medical journal especially concerned with information in the field of internal medicine (adult medicine). Designed to be read largely by internists, the Annals states it is “is the leading journal for studies in internal medicine.” (Such claims aside, the Annals is without question one of the leading journals in medicine […]