| LS | lateral suspensor; left sacrum; left septum; left side; legally separated; leiomyosarcoma; length of... |
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| LSO | lateral superior olive; left salpingo-oophorectomy; left superior oblique; lumbosacral orthosis |
| LST | lateral spinothalamic tract; left sacrotransverse [fetal position]; life-sustaining treatment |
| LSV | lateral sacral vein; left subclavian vein; longitudinal sound velocity |
| lt | lat left lateral |
| lateral nucleus of thalamus | The largest of the major subdivisions of the thalamus; the composite lateral nucleus includes, from before backward, the nucleus lateralis anterior or dorsalis, nucleus lateralis intermedius, nucleus lateralis posterior, and pulvinar; together, these cell groups form most of the free dorsal surface of the posterior half of the thalamus and project to a very large region of parietal, occipitoparietal, and temporal cortex; its afferent connections are largely obscure, but the nucleus lateralis posterior and the pulvinar receive a projection from the superior colliculus. Synonym: nucleus lateralis thalami. (05 Mar 2000) |
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| lateral oblique radiograph | A radiographic view of the mandible, revealing one side of the mandible from symphysis to condyle by displacing the other side upwards. (05 Mar 2000) |
| lateral occipital artery | <anatomy, artery> One of the terminal branches of the posterior cerebral artery; it supplies, by several named branches, the lateral portions of the temporal lobe. Synonym: arteria occipitalis lateralis. (05 Mar 2000) |
| lateral occipital sulcus | One of several variable sulci on the lateral aspect of the occipital lobe of each cerebral hemisphere, bounding the lateral occipital convolutions. Synonym: sulcus occipitalis lateralis. (05 Mar 2000) |
| lateral occipitotemporal gyrus | An extremely long convolution extending lengthwise over the inferior aspect of the temporal and occipital lobes, demarcated medially by the collateral sulcus from the lingual gyrus and the anterior part of the parahippocampal gyrus, laterally by the inferior temporal sulcus from the inferior temporal gyrus. Synonym: gyrus occipitotemporalis lateralis, gyrus fusiformis, lateral occipitotemporal gyrus, lobulus fusiformis. (05 Mar 2000) |
| lateral occlusion | Malposition of a tooth or an entire dental arch in a direction away from the midline. (05 Mar 2000) |
| lateral orbitofrontal branch | <anatomy, artery> A branch of the insular part of the middle cerebral artery distributed to the cortex of the lateral, inferior part of the frontal lobe. Synonym: arteria frontobasalis lateralis, ramus orbitofrontalis lateralis, lateral orbitofrontal branch, orbitofrontal artery. (05 Mar 2000) |
| lateral palpebral commissure | The union of the upper and lower eyelids adjacent to the lateral angle. Synonym: commissura palpebrarum lateralis. (05 Mar 2000) |
| lateral palpebral raphe | A narrow fibrous band in the lateral part of the orbicularis oculi muscle formed by the interlacing of fibres passing through the upper and lower eyelids. Synonym: raphe palpebralis lateralis, palpebral raphe. (05 Mar 2000) |
| lateral part of occipital bone | The part of the occipital bone that lies on either side of the foramen magnum. Synonym: pars lateralis ossis occipitalis, exoccipital bone. (05 Mar 2000) |
| lateral part of posterior cervical intertransversarii muscles | lateral part of posterior cervical intertransversarii muscles |
| lateral part of sacrum | The lateral mass of the sacrum formed by the fused costal elements. Synonym: pars lateralis ossis sacri. (05 Mar 2000) |
| lateral part of vaginal fornix | lateral part of vaginal fornix |
| lateral patellar retinaculum | Part of the aponeurosis of the vastus lateralis muscle passing lateral to the patella to attach to the tibial tuberosity. Synonym: retinaculum patellae laterale. (05 Mar 2000) |
| lateral pectoral nerve | <anatomy, nerve> A nerve that arises from the lateral cord of the brachial plexus usually passing medial to pectoralis minor to supply the sternoclavicular head of pectoralis major. Synonym: nervus pectoralis lateralis, lateral anterior thoracic nerve. (05 Mar 2000) |