| ACHE | American College of Healthcare Executives; American Council for Headache Education |
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| ALTS | acute lumbar traumatic sprain [or syndrome] |
| ALV | Abelson leukemia virus; adeno-like virus; alveolar, alveolus; ascending lumbar vein; avian leukosis ... |
| BEH | benign exertional headache |
| BSH | benign sexual headache |
| 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) |
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| fourth lumbar nerve | <anatomy, nerve> The ventral branch of the nerve is forked to enter into the formation of both lumbar and sacral plexuses. Synonym: furcal nerve, nervus furcalis. (05 Mar 2000) |
| left lumbar lymph nodes | The chain of lymph nodes associated with the aorta in the abdomen; it is divided into three groups: lateral aortic lymph nodes on the left of the aorta; pre-aortic lymph nodes in front of the aorta; post-aortic lymph nodes, behind the aorta. Synonym: nodi lymphatici lumbales sinistri, lumbar lymph nodes. (05 Mar 2000) |
| lowest lumbar arteries | Origin, middle sacral; distribution, sacrum and iliac muscle; anastomosis, deep circumflex iliac artery. Synonym: arteriae lumbales imae. (05 Mar 2000) |
| lumbar | <anatomy> Pertaining to the loins, the part of the back between the thorax and the pelvis. (18 Nov 1997) |
| lumbar appendicitis | A retrodisplaced appendix in the lumbar region. (05 Mar 2000) |
| lumbar artery | <anatomy, artery> Origin, abdominal aorta; one of four or five pairs; distribution, lumbar vertebrae, muscles of back, abdominal wall; anastomoses, intercostal, subcostal, superior and inferior epigastric, deep circumflex iliac, and iliolumbar. Synonym: arteria lumbalis. (05 Mar 2000) |
| lumbar branch of iliolumbar artery | <anatomy, artery> Terminal branch of iliolumbar artery (with iliac branch) which ascends to supply psoas major and quadratus lumborum muscles; anastomosis: fourth lumbar artery. Synonym: ramus lumbalis arteriae iliolumbalis. (05 Mar 2000) |
| lumbar cistern | Enlargement of subarachnoid space between inferior end of spinal cord (vertebral level L-2) and inferior end of subarachnoid space or dura mater (vertebral level S2); occupied by the dorsal and ventral roots of lumbosacral spinal nerves (which constitute the cauda equina), the filum terminal, and cerebrospinal fluid. Site for lumbar puncture and spinal anaesthesia. (05 Mar 2000) |
| lumbar cord | That part of the cord that consists of the five lumbar segments and gives rise to the five pairs of lumbar nerves. Synonym: pars lumbalis medullae spinalis. (05 Mar 2000) |
| lumbar disk removal | A surgical procedure which is designed to relieve pressure on the spinal cord or nerve root that is being caused by a slipped or herniated disk in the lumbar spine. This procedure is also used in the treatment of spinal stenosis. This procedure includes removal of a portion of the bone comprising a vertebra. Recovery is generally 7-10 days. An alternative to this is a micro-disc surgery. (27 Sep 1997) |
| lumbar enlargement | A spindle-shaped swelling of the spinal cord beginning at the level of the tenth thoracic vertebra and tapering into the medullary cone, with maximum thickness opposite the last thoracic vertebra, consequential to the innervation of the lower limb. Synonym: intumescentia lumbalis, lumbar enlargement of spinal cord. (05 Mar 2000) |
| lumbar enlargement of spinal cord | A spindle-shaped swelling of the spinal cord beginning at the level of the tenth thoracic vertebra and tapering into the medullary cone, with maximum thickness opposite the last thoracic vertebra, consequential to the innervation of the lower limb. Synonym: intumescentia lumbalis, lumbar enlargement of spinal cord. (05 Mar 2000) |
| lumbar flexure | The normal ventral curve of the vertebral column in the lumbar region. (05 Mar 2000) |
| lumbar ganglia | Four or more ganglia on the medial border of the psoas major muscle on either side; they form, with the sacral and coccygeal ganglia and their interganglionic rami, the abdominopelvic sympathetic trunk. Synonym: ganglia lumbalia. (05 Mar 2000) |