| medial collateral | <anatomy> A strong ligament which connects the femur to the tibia, stabilising the inner aspect of the knee joint. (27 Sep 1997) |
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| medial collateral ligament, knee | A broad, flat, longitudinal band on the medial side of the knee joint. It is attached superiorly to the medial epicondyle of the femur, inferiorly to the medial surface of the body of the tibia, and in between to the medial meniscus. It is a frequent site of injury, particularly rupture and tear. (12 Dec 1998) |
| medial collateral ligament of elbow | The triangular ligament extending from the medial epicondyle of the humerus to the medial side of the coronoid process and olecranon of the ulna. Synonym: ligamentum collaterale ulnare, medial collateral ligament of elbow, ulnar collateral ligament. (05 Mar 2000) |
| middle collateral artery | <anatomy, artery> The posterior terminal branch of the profunda brachii, anastomosing with the arteries which form the articular network of the elbow. Synonym: arteria collateralis media. (05 Mar 2000) |
| collateral | <anatomy> Situated side by side, adjacent and on the same radius of an axis. (09 Oct 1997) |
| collateral artery | <anatomy, artery> One that runs parallel with a nerve or other structure, one through which a collateral circulation is established. See: articular vascular network. (05 Mar 2000) |
| collateral branches of posterior intercostal arteries 3-11 | Branch arising near angle of rib and descending to run along superior border of rib below; distribution: lower half of intercostal spaces 3-11; anastomoses: collateral branches of anterior intercostal arteries. Synonym: ramus collateralis arteriarum intercostalium posteriorum III-XI. (05 Mar 2000) |
| collateral circulation | Compensatory circulation carried on through secondary channels after obstruction of the principal vessel supplying the part. (12 Dec 1998) |
| collateral digital artery | <anatomy, artery> Terminal branches of the common palmar digital artery that pass to the side of each finger. Synonym: arteria digitalis palmaris propria, collateral digital artery, digital collateral artery. (05 Mar 2000) |
| collateral eminence | A longitudinal elevation of the floor of the collateral trigone of the lateral ventricle of the brain, between the hippocampus and the calcar avis, caused by the proximity of the floor of the collateral fissure. Synonym: eminentia collateralis. (05 Mar 2000) |
| collateral fissure | A long, deep sagittal fissure on the undersurface of the temporal lobe, marking the border between the fusiform gyrus laterally and the hippocampal and lingual gyri medially; the great depth of the collateral sulcus results in a bulging of the floor of the occipital and temporal horn of the lateral ventricle, the collateral eminence. Synonym: sulcus collateralis, sulcus occipitotemporalis, collateral fissure, fissura collateralis, occipitotemporal sulcus. (05 Mar 2000) |
| collateral inheritance | The appearance of characters in collateral members of a family group, as when an uncle and a niece show the same character inherited from a common ancestor; in recessive characters it may appear irregularly, in contrast to dominant characters transmitted directly from one generation to the next. (05 Mar 2000) |
| collateral ligament | <anatomy> One of a number of ligaments on either side of, and serving as a radius of movement of, a joint having a hingelike movement; they occur at the following joints: elbow, knee, wrist, and the metacarpo-or metatarsophalangeal, proximal interphalangeal, and distal interphalangeal joints of the hands and feet. Synonym: ligamentum collaterale. (05 Mar 2000) |
| collateral ligaments | A number of ligaments on either side of, and serving as a radius of movement of, a joint having a hingelike movement. They occur at the elbow, knee, wrist, metacarpo- and metatarsophalangeal, proximal interphalangeal, and distal interphalangeal joints of the hands and feet. (12 Dec 1998) |
| collateral sulcus | A long, deep sagittal fissure on the undersurface of the temporal lobe, marking the border between the fusiform gyrus laterally and the hippocampal and lingual gyri medially; the great depth of the collateral sulcus results in a bulging of the floor of the occipital and temporal horn of the lateral ventricle, the collateral eminence. Synonym: sulcus collateralis, sulcus occipitotemporalis, collateral fissure, fissura collateralis, occipitotemporal sulcus. (05 Mar 2000) |