| PLED | periodic lateral epileptiform discharge |
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| PLS | Papillon-Lefevre syndrome; polydactyly-luxation syndrome; preleukemic syndrome; primary lateral scle... |
| RL | radial line; radiation laboratory; reduction level; renal dysplasia-limb defects [syndrome]; resisti... |
| RLF | retrolental fibroplasia; right lateral femoral |
| RLR | right lateral rectus [muscle] |
| lateral lumbar intertransversarii muscles | Origin, transverse processes of lumbar vertebrae; insertion, next superior transverse process; action, abducts lumbar vertebrae; nerve supply, ventral branches of lumbar nerves. Synonym: musculi intertransversarii laterales lumborum, lateral lumbar intertransverse muscles. (05 Mar 2000) |
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| lateral lumbar intertransverse muscles | Origin, transverse processes of lumbar vertebrae; insertion, next superior transverse process; action, abducts lumbar vertebrae; nerve supply, ventral branches of lumbar nerves. Synonym: musculi intertransversarii laterales lumborum, lateral lumbar intertransverse muscles. (05 Mar 2000) |
| lateral lumbocostal arch | <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 malleolar arteries | Lateral malleolar branches of peroneal artery. Synonym: rami malleolares laterales, arteriae malleolares posteriores laterales, posterior peroneal arteries. (05 Mar 2000) |
| lateral malleolar bursa | <anatomy> The bursa between the lateral malleolus and the skin. Synonym: bursa subcutanea malleoli lateralis, lateral malleolus bursa, subcutaneous bursa of lateral malleolus. (05 Mar 2000) |
| lateral malleolar ligament | <anatomy> See: anterior tibiofibular ligament, posterior tibiofibular ligament. (05 Mar 2000) |
| lateral malleolar network | A network over the lateral malleolus formed by branches of the posterior lateral malleolar, anterior lateral malleolar, peroneal, and lateral tarsal arteries. Synonym: rete malleolare laterale. (05 Mar 2000) |
| lateral malleolar surface of talus | That surface of the trochlea of the talus that articulates with the lateral malleolus of the fibula. Synonym: facies malleolaris lateralis tali. (05 Mar 2000) |
| lateral malleolus | The process at the lateral side of the lower end of the fibula, forming the projection of the lateral part of the ankle; the lateral malleolus is more inferiorly placed then the medial malleolus. Synonym: malleolus lateralis, external malleolus, extramalleolus, outer malleolus. (05 Mar 2000) |
| lateral malleolus bursa | lateral malleolar subcutaneous bursa |
| lateral mammary branches | Branches primarily distributed to the lateral portion of the breast. Synonym: rami mammarii laterales. (05 Mar 2000) |
| lateral margin | The margin or edge of a structure which is farthest from the midline. Synonym: margo lateralis, lateral margin. (05 Mar 2000) |
| lateral mass of atlas | The thick lateral part of the atlas on each side that articulates above with the occipital condyle and below with the axis. Synonym: massa lateralis atlantis. (05 Mar 2000) |
| lateral mass of ethmoid bone | A mass of air cells with thin bony walls forming part of the lateral wall of the nasal cavity; the cells are arranged in three groups, anterior, middle, and posterior, and are closed laterally by the orbital plate which forms part of the wall of the orbit. Synonym: labyrinthus ethmoidalis, ectethmoid, ectoethmoid, lateral mass of ethmoid bone. (05 Mar 2000) |
| lateral medullary lamina of corpus striatum | A thin, sharply defined layer of fibres separating the putamen from the globus pallidus. Synonym: lamina medullaris lateralis corporis striati. (05 Mar 2000) |