| tubercle of iliac crest | A prominence on the outer lip of the iliac crest about 5 cm behind the anterior superior iliac spine. Synonym: tuberculum iliacum, iliac tubercle. (05 Mar 2000) |
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| external iliac artery | <anatomy, artery> Origin, common iliac; branches, inferior epigastric, deep circumflex iliac; becomes the femoral at the inguinal ligament. Synonym: arteria iliaca externa. (05 Mar 2000) |
| external iliac plexus | A lymphatic plexus formed by the lymph nodes along the external iliac artery on either side, and their afferent and efferent vessels. Synonym: plexus iliacus externus. (05 Mar 2000) |
| external iliac vein | <anatomy, vein> A direct continuation of the femoral vein superior to the inguinal ligament, uniting with the internal iliac vein to form the common iliac vein. Synonym: vena iliaca externa. (05 Mar 2000) |
| external lip of iliac crest | The roughened outer margin of the crest that gives attachment to the external oblique and latissimus dorsi muscles above and to the fasciae latae and the tensor fascia lata muscle below. Synonym: labium externum cristae iliacae. (05 Mar 2000) |
| carotid artery, common | The two principal arteries supplying the structures of the head and neck. They ascend in the neck, one on each side, and at the level of the upper border of the thyroid cartilage, each divides into two branches, the external (carotid artery, external) and internal (carotid artery, internal) carotid arteries. (12 Dec 1998) |
| migraine, common | Migraine without aura. The most frequent type, accounting for about 80-85% of migraines. See migraine. (12 Dec 1998) |
| cold, common | A viral upper respiratory tract infection. A contagious illness caused by a number of different types of viruses. Because of the great number of viruses that can cause a cold, the body never builds up resistance (immune) against all of them. For this reason, colds are a frequent and recurring problem. In fact, preschool children average 9 colds a year; those in kindergarten, 12 colds a year; and adolescents and adults, 7 colds per year. Going out into the cold weather has no effect on the spread of a cold. Antibiotics do not help the common cold. (12 Dec 1998) |
| common acute lymphoblastic leukaemia | <haematology, oncology> A sub-type of acute lymphoblastic leukaemia affecting cells early in the B lymphocyte lineage which accounts for about 80% of all acute lymphoblastic leukaemia. Origin: Gr. Haima = blood (13 Nov 1997) |
| common antigen | Cross reacting antigen (epitope), a common antigen that occurs in 2 or more different molecules/organisms. Synonym: heterogenic enterobacterial antigen. (05 Mar 2000) |
| common baldness | Hair loss in women that may be associated with aging, hormones (androgens) or genetic predisposition. The pattern of baldness in women is different from that of men. In women there is thinning of the hair all over the scalp, but the frontal hairline is maintained. The hair loss is usually permanent. Treatment has been successful with topical minoxidil in some cases. (27 Sep 1997) |
| common basal vein | <anatomy, vein> The tributary to the inferior pulmonary vein (right and left) that receives blood from the superior and inferior basal veins. Synonym: vena basalis communis. (05 Mar 2000) |
| common bile duct | <anatomy> A duct that carries bile from the liver and gallbladder to the duodenum (first part of the small intestine). (27 Sep 1997) |
| common bile duct calculi | The presence of gallstones in the common bile duct. It is usually the result of passage of gallstones formed in the gallbladder into the common duct. Less commonly, stones form in a duct behind an obstruction caused by a stricture or ampullary stenosis. Stone type helps to determine site of origin: cholesterol or black pigment stones more likely form in the gallbladder, while almost all brown pigment stones in patients from western countries form in the bile ducts. (12 Dec 1998) |
| common bile duct diseases | Diseases of the common bile duct, vater's ampulla, or oddi's sphincter. (12 Dec 1998) |