| LAS | laboratory automation system; lateral amyotrophic sclerosis; laxative abuse syndrome; left anterior-... |
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| LAT | lateral; latex agglutination test; left atrial thrombus; lysolecithin acyltransferase |
| lat | latent; lateral |
| lat | bend lateral bending |
| LCN | lateral cervical nucleus; left caudate nucleus; lipocalin |
| inferior lateral genicular artery | <anatomy, artery> Origin, popliteal; distribution, knee joint; anastomoses, lateral superior genicular and anterior tibial recurrent (and posterior); i.e., articular vascular network of knee. Synonym: arteria genus inferior lateralis, lateral inferior genicular artery. (05 Mar 2000) |
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| trigone of lateral ventricle | A triangular prominence of the floor of the lateral ventricle at the transition between occipital and temporal horn, continuous rostrally with the collateral eminence and, like the latter, caused by the deep penetration of the collateral sulcus from the ventral surface of the temporal lobe. Synonym: trigonum collaterale, trigone of lateral ventricle, trigonum ventriculi, ventricular trigone. (05 Mar 2000) |
| film, lateral | An X-ray picture taken from the side. (12 Dec 1998) |
| 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) |
| lateral | 1. <anatomy> Denoting a position farther from the median plane or midline of the body or of a structure. 2. Pertaining to a side. Origin: L. Lateralis (18 Nov 1997) |
| lateral aberrant thyroid carcinoma | <tumour> A cervical nodule of thyroid carcinoma situated outside the thyroid gland, formerly thought to arise from ectopic thyroid tissue but now believed to be metastatic from an occult carcinoma within the gland. (05 Mar 2000) |
| lateral aberration | In spherical aberration, the distance between paraxial focus of central rays on the optic axis. (05 Mar 2000) |
| lateral alveolar abscess | An alveolar abscess located along the lateral root surface of a tooth. Synonym: pericemental abscess. (05 Mar 2000) |
| lateral angle of eye | The angle formed by the junction of the lateral parts of the upper and lower eyelids. Synonym: angulus oculi lateralis, angulus oculi temporalis, external canthus, lateral canthus. (05 Mar 2000) |
| lateral angle of scapula | The blunt, concave head of the scapula forming the glenoid cavity at the junction of the superior and lateral borders of the bone. Synonym: angulus lateralis scapulae. (05 Mar 2000) |
| lateral angle of uterus | The upper part of the side of the uterus at the point of its junction with the uterine tube. (05 Mar 2000) |
| lateral aperture of the fourth ventricle | One of the two lateral openings of the fourth ventricle into the subarachnoid space at the cerebellopontine angle. Synonym: apertura lateralis ventriculi quarti, foramen lateralis ventriculi quarti, foramen of Key-Retzius, foramen of Luschka, Retzius' foramen. (05 Mar 2000) |
| lateral arcuate ligament | <anatomy> One of Haller's arches; a thickening of the fascia of the quadratus lumborum muscle between the transverse process of the first lumbar vertebra and the twelfth rib on either side that gives attachment to a portion of the diaphragm. Synonym: ligamentum arcuatum laterale, arcus lumbocostalis lateralis, lateral lumbocostal arch. (05 Mar 2000) |
| lateral atlantoaxial joint | A condylar synovial joint between the inferior articular facets of the atlas and the superior articular facets of the axis. Synonym: articulatio atlantoaxialis lateralis, lateral atlantoepistrophic joint. (05 Mar 2000) |
| lateral atlantoepistrophic joint | A condylar synovial joint between the inferior articular facets of the atlas and the superior articular facets of the axis. Synonym: articulatio atlantoaxialis lateralis, lateral atlantoepistrophic joint. (05 Mar 2000) |