| 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) |
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| 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) |
| superficial dorsal sacrococcygeal ligament | <anatomy> The continuation of the supraspinal ligament from the sacrum to the coccyx. Synonym: ligamentum sacrococcygeum posterius superficiale, superficial posterior sacrococcygeal ligament. (05 Mar 2000) |
| deep dorsal sacrococcygeal ligament | <anatomy> The continuation of the posterior longitudinal ligament uniting the sacrum and coccyx. Synonym: ligamentum sacrococcygeum posterius profundum, deep posterior sacrococcygeal ligament. (05 Mar 2000) |
| dorsal calcaneocuboid ligament | <anatomy> See: bifurcate ligament. (05 Mar 2000) |
| dorsal carpal ligament | A strong fibrous band formed as a thickening of the antebrachial deep fascia, stretching obliquely across the back of the wrist, attaching deeply to ridges on the dorsal aspect of the radius, triquetral and pisiform bones, binding down the extensor tendons of the fingers and thumb. Synonym: retinaculum extensorum, dorsal carpal ligament, ligamentum carpi dorsale. (05 Mar 2000) |
| dorsal cuboideonavicular ligament | <anatomy> The ligament that unites the dorsal surfaces of the cuboid and navicular bones of the tarsus. Synonym: ligamentum cuboideonaviculare dorsale. (05 Mar 2000) |
| dorsal cuneocuboid ligament | <anatomy> The fibrous band that unites the dorsal margins of the lateral cuneiform and cuboid bones. Synonym: ligamentum cuneocuboideum dorsale. (05 Mar 2000) |
| dorsal radiocarpal ligament | <anatomy> The ligament that extends from the distal end of the radius posteriorly to the proximal row of carpal bones. Synonym: ligamentum radiocarpale dorsale. (05 Mar 2000) |
| dorsal talonavicular ligament | <anatomy> The broad band that passes from the dorsal side of the neck of the talus to the dorsal surface of the navicular bone. Synonym: ligamentum talonaviculare, talonavicular ligament. (05 Mar 2000) |
| annular | <dermatology> Arranged in or forming a ring. (09 Oct 1997) |
| annular band | The strands of amniotic tissue adherent to the embryo or foetus; they may cause constriction of embryonic limbs. See: congenital amputation. Synonym: amniotic adhesions, annular band, constriction ring, Simonart's bands, Simonart's ligaments, Simonart's threads, Streeter's bands. (05 Mar 2000) |
| annular cartilage | <anatomy> The lower most of the laryngeal cartilages, may be palpated just below the thyroid prominence Adjacent the cricoid cartilage and the first tracheal ring is the cricothyroid membrane, a site used for rapid emergency airway access (cricothyroidotomy). (13 Nov 1997) |
| annular cataract | Congenital cataract in which a central white membrane replaces the nucleus. Synonym: disk-shaped cataract, life-belt cataract, umbilicated cataract. (05 Mar 2000) |