| lacertus | Origin: L, the upper arm. <anatomy> A bundle or fascicle of muscular fibres. Source: Websters Dictionary (01 Mar 1998) |
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| lacertus cordis | One of the trabeculae carneae. (05 Mar 2000) |
| lacertus fibrosus | Aponeurosis bicipitalis, radiating fibres from the tendon of insertion of the biceps which form a triangular band passing obliquely across the hollow of the elbow to the ulnar side and becoming merged into the deep fascia of the forearm. Formerly called "grace Dieu" fascia, it serves to protect the brachial artery and median nerve during phlebotomy of median cubital vein. Synonym: aponeurosis musculi bicipitis brachii, bicipital fascia, lacertus fibrosus, semilunar fascia. (05 Mar 2000) |
| lacertus medius | <anatomy> The wide fibrous band interconnecting the anterior surfaces of the vertebral bodies. Synonym: lacertus medius, ligamentum longitudinale anterius. (05 Mar 2000) |
| lacertus musculi recti lateralis | <anatomy> The part of the tendon of origin of the lateral rectus muscle attaching to the greater wing of the sphenoid bone, lateral to the common tendinous ring; often incorrectly equated to the lateral check ligament of the eyeball. Synonym: lacertus musculi recti lateralis. (05 Mar 2000) |
| lacertus of lateral rectus muscle | <anatomy> The part of the tendon of origin of the lateral rectus muscle attaching to the greater wing of the sphenoid bone, lateral to the common tendinous ring; often incorrectly equated to the lateral check ligament of the eyeball. Synonym: lacertus musculi recti lateralis. (05 Mar 2000) |
| lacewing | <zoology> Any one of several species of neuropterous insects of the genus Chrysopa and allied genera. They have delicate, lacelike wings and brilliant eyes. Their larvae are useful in destroying aphids. Synonym: lace-winged fly, and goldeneyed fly. Source: Websters Dictionary (01 Mar 1998) |
| Lachman test | A manoeuvre to detect deficiency of the anterior cruciate ligament; with the knee flexed 20 to 30 degrees, the tibia is displaced anteriorly relative to the femur; a soft endpoint or greater than 4 millimeters of displacement is positive (abnormal). (05 Mar 2000) |
| lachman's test | <investigation> A physical examination technique used to detect injury to the anterior cruciate ligament in the knee. The examiner will have you lay on your back with your knee bent at a 30 degree angle. Holding the end portion of your thigh with one hand and the top of the shin with the other hand, the examiner will apply slow pressure to the back of the of the proximal tibia (just below the knee). Increased looseness in the knee joint is indicative of an anterior cruciate ligament injury. (27 Sep 1997) |
| lachrymal | 1. Of or pertaining to tears; as, lachrymal effusions. 2. <anatomy> Pertaining to, or secreting, tears; as, the lachrymal gland. Pertaining to the lachrymal organs; as, lachrymal bone; lachrymal duct. Origin: Cf. F. Lacrymal. See Lachrymose. Source: Websters Dictionary (01 Mar 1998) |
| lachrymatory | Origin: Cf. F. Lacrymatoire. A "tear-bottle;" a narrow-necked vessel found in sepulchers of the ancient Romans; so called from a former notion that the tears of the deceased person's friends were collected in it. Synonym: lachrymal or lacrymal. Source: Websters Dictionary (01 Mar 1998) |
| LACI | <abbreviation> Lipoprotein-associated coagulation inhibitor. (05 Mar 2000) |
| lacing | 1. The act of securing, fastening, or tightening, with a lace or laces. 2. <machinery> A lace; specifically, a thong of thin leather for uniting the ends of belts. 3. A rope or line passing through eyelet holes in the edge of a sail or an awning to attach it to a yard, gaff, etc. 4. <engineering> A system of bracing bars, not crossing each other in the middle, connecting the channel bars of a compound strut. Source: Websters Dictionary (01 Mar 1998) |
| lacinia | Origin: L, the lappet or flap of a garment. 1. <botany> One of the narrow, jagged, irregular pieces or divisions which form a sort of fringe on the borders of the petals of some flowers. A narrow, slender portion of the edge of a monophyllous calyx, or of any irregularly incised leaf. 2. <zoology> The posterior, inner process of the stipes on the maxillae of insects. Source: Websters Dictionary (01 Mar 1998) |
| laciniae tubae | Synonym: fimbriae of uterine tube. Origin: L. Lacinia, fringe (05 Mar 2000) |