| sphincter of common bile duct | Smooth muscle sphincter of the common bile duct immediately proximal to the hepatopancreatic ampulla; it is this sphincter that controls the flow of bile in the duodenum. Synonym: musculus sphincter ductus choledochi, Boyden's sphincter, choledochal sphincter, sphincter muscle of common bile duct. (05 Mar 2000) |
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| leukocyte common antigen | Family of glycoproteins found on most leukocytes and absent from other cell types. These cell surface antigens can comprise up to 10% of the membrane proteins. (05 Mar 2000) |
| acromioclavicular ligament | <anatomy> A fibrous band extending from the acromion of the scapula to the clavicle. Synonym: ligamentum acromioclaviculare. (05 Mar 2000) |
| alveolodental ligament | <anatomy> Fibrous connective tissue surrounding the root of a tooth that separates it from and attaches it to the alveolar bone. (12 Dec 1998) |
| annular ligament | <anatomy> One of a number of ligament's encircling various parts; the principal annular ligament's are those of the stapes, radius, and trachea. See: annular ligament of the radius, annular ligament of the stapes, annular ligaments of the trachea. Synonym: ligamentum annulare, orbicular ligament. (05 Mar 2000) |
| annular ligament of the radius | The ligament that encircles and holds the head of the radius in the radial notch of the ulna, forming the proximal radioulnar joint and enabling pronation/supination of forearm; receives the radial collateral ligament of the elbow. Synonym: ligamentum annulare radii, ligamentum orbiculare radii, orbicular ligament of radius. (05 Mar 2000) |
| annular ligament of the stapes | A ring of elastic fibres that attaches the base of the stapes to the margin of the fenestra vestibuli. Synonym: ligamentum annulare stapedis. (05 Mar 2000) |
| anococcygeal ligament | <anatomy> A musculofibrous band that passes between the anus and the coccyx. Synonym: ligamentum anococcygeum, anococcygeal body, raphe anococcygea, Symington's anococcygeal body. (05 Mar 2000) |
| anterior costotransverse ligament | <anatomy> The fibrous band that extends upward from the neck of a rib to the transverse process of the next higher vertebra. Synonym: ligamentum costotransversarium superius, anterior costotransverse ligament, ligamentum costotransversarium anterius. (05 Mar 2000) |
| anterior cruciate ligament | <anatomy> A ligament that stabilises the knee joint. <orthopaedics> A common type of knee sprain which involves injury to the anterior cruciate ligament. The knee with an anterior cruciate ligament injury will usually appear swollen and tender. Reconstruction of the ligament is possible using a fibreoptic procedure, known as arthroscopy, is used in the surgical repair of any of several knee ligaments including the anterior cruciate ligament, lateral or medial meniscus, lateral collateral or medial collateral ligament. Recovery from this procedure is based largely on the ligament repaired and can be highly variable. (06 Oct 1997) |
| anterior ligament of head of fibula | A ligament uniting the anterior part of the head of the fibula to the tibia. Synonym: ligamentum capitis fibulae anterius. (05 Mar 2000) |
| anterior ligament of Helmholtz | See: anterior ligament of malleus. (05 Mar 2000) |
| anterior ligament of malleus | Consists of two portions: Meckel's band, passing from the base of the anterior process to the spine of the sphenoid through the petrotympanic fissure; and the anterior ligament of Helmholtz, extending from the anterior aspect of the neck of the malleus to the anterior boundary of the tympanic notch. Synonym: ligamentum mallei anterius. (05 Mar 2000) |
| anterior longitudinal ligament | <anatomy> The wide fibrous band interconnecting the anterior surfaces of the vertebral bodies. Synonym: lacertus medius, ligamentum longitudinale anterius. (05 Mar 2000) |
| anterior meniscofemoral ligament | <anatomy> The ligamentous band that passes anterior to the posterior cruciate ligament, extending between the posterior portion of the lateral meniscus and the upper end of the anterior cruciate ligament. Synonym: ligamentum meniscofemorale anterius, Humphry's ligament. (05 Mar 2000) |