| SNR | selective nerve root [block]; signal-to-noise ratio; substantia nigra zona reticulata; supernumerary... |
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| SRP | short rib-polydactyly [syndrome]; signal recognition particle; Society for Radiological Protection; ... |
| SRPS | short rib-polydactyly syndrome |
| URC | upper rib cage; utilization review committee |
| LP | 1) Lymphocyte Predominant 2) Lumbar Puncture |
| short rib-polydactyly syndrome | <syndrome> A syndrome inherited as an autosomal recessive trait and incompatible with life. The main features are narrow thorax, short ribs, scapular and pelvic dysplasia, and polydactyly. (12 Dec 1998) |
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| slipping rib | Subluxation of a rib cartilage, with costochondral separation. (05 Mar 2000) |
| slipping rib cartilage | Subluxation of rib cartilage, at the costo-chondral junction, causing pain and audible click. (05 Mar 2000) |
| neck of rib | The flattened portion of a rib between the head and the tuberosity. Synonym: collum costae. (05 Mar 2000) |
| elevator muscle of rib | musculus levator costae, elevator muscle of rib, musculi levatores costarum |
| tubercle of rib | The knob on the posterior surface of a rib, at the junction of its neck and shaft, which articulates with the transverse process of the vertebra, whch corresponds in number to the rib, forming a costotransverse joint. Synonym: tuberculum costae. (05 Mar 2000) |
| joint of head of rib | The synovial joint between a rib and bodies of two adjacent vertebrae; the joint cavity is divided by an intra-articular ligament which attaches to the intervertebral disk; the first, tenth, eleventh, and twelfth ribs articulate with only one vertebra. Synonym: articulatio capitis costae, capitular joint. (05 Mar 2000) |
| false rib | <anatomy> Five lower ribs on either side that do not articulate with the sternum directly. Synonym: costae spuriae, vertebrochondral ribs. (05 Mar 2000) |
| unilateral rib notching | <radiology> Aortic coarctation, proximal to left subclavian artery most likely to be right, anomalous right subclavian artery most likely to be left, subclavian artery stenosis / atresia, most likely to be IPSIlateral, Blalock-Taussig shunt, anastamosis of subclavian artery to pulmonary artery, for Tetralogy of Fallot, most likely to be IPSIlateral (12 Dec 1998) |
| ascending lumbar vein | <anatomy, vein> Paired, vertical vein of the posterior abdominal wall, adjacent and parallel to the vertebral column, posterior to the origin of the psoas major muscle; it connects the common iliac, iliolumbar, and lumbar veins in the paravertebral line, the right vein joining the right subcostal vein to form the azygos vein, the left vein uniting with the left subcostal vein to form the hemiazygos vein. Synonym: vena lumbalis ascendens. (05 Mar 2000) |
| ventral primary rami of lumbar spinal nerves | See: ventral primary ramus of spinal nerve. Synonym: rami ventrales nervorum lumbalium. (05 Mar 2000) |
| medial lumbar intertransversarii muscles | Origin, accessory and mamillary processes of lumbar vertebrae; insertion, corresponding processes of next superior vertebra; action, abducts lumbar vertebrae; nerve supply, dorsal primary rami of lumbar spinal nerves. Synonym: musculi intertransversarii mediales lumborum, medial lumbar intertransverse muscles. (05 Mar 2000) |
| medial lumbar intertransverse muscles | Origin, accessory and mamillary processes of lumbar vertebrae; insertion, corresponding processes of next superior vertebra; action, abducts lumbar vertebrae; nerve supply, dorsal primary rami of lumbar spinal nerves. Synonym: musculi intertransversarii mediales lumborum, medial lumbar intertransverse muscles. (05 Mar 2000) |
| right lumbar lymph nodes | The chain of lymph nodes associated with the inferior vena cava; it is divided into three groups: nodi lymphatici cavales laterales on the right of the inferior vena cava; nodi lymphatici precavales, in front of the inferior vena cava; nodi lymphatici postcavales, under nodus lymphaticus, behind the inferior vena cava. Synonym: nodi lymphatici lumbales dextri, lumbar lymph nodes. (05 Mar 2000) |
| Petit's lumbar triangle | An area in the posterior abdominal wall bounded by the edges of the latissimus dorsi and external oblique muscles and the iliac crest; herniations occasionally occur here. Synonym: trigonum lumbale, Petit's lumbar triangle. (05 Mar 2000) |