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lumbar

 
Dictionary: lum·bar   (lŭm'bər, -bär') pronunciation
adj.
Of, near, or situated in the part of the back and sides between the lowest ribs and the pelvis.

n.
A lumbar artery, nerve, vertebra, or part.

[New Latin lumbāris, from Latin lumbus, loin.]


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Pertaining to the lower back.

Pertaining to the loins.

  • l. epidural analgesia — see epidural anesthesia.
  • l. paralysis — paraplegia generally and specifically that due to cerebrospinal nematodiasis.
  • l. plexus — one formed by the ventral branches of the last four or five lumbar nerves in the psoas major muscle.
  • l. puncture — insertion of a needle and stylet into the subarachnoid space between the seventh lumbar vertebra and sacrum in most species except the dog, where the space between the sixth and seventh lumbar vertebrae is usually used; called also spinal puncture. A lumbar puncture may be done to measure the pressure of cerebrospinal fluid and obtain a specimen for examination, and to inject a contrast medium for special radiographic examinations such as myelography. As a therapeutic measure it is sometimes done to relieve intracranial pressure or to remove blood or pus from the subarachnoid space. A lumbar puncture also is necessary for injection of a spinal anesthetic.
  • l. spinal stenosis — see lumbosacral stenosis.
  • l. tap — see lumbar puncture (above).
  • l. vertebrae — the vertebrae between the thoracic vertebrae and the sacrum, numbering seven in dogs and cats, six in horses and cattle, and six or seven in sheep and pigs.
Wikipedia: Lumbar
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In anatomy, lumbar is an adjective that means of or pertaining to the abdominal segment of the torso, between the diaphragm and the sacrum (pelvis). The lumbar region is sometimes referred to as the lower spine. The five vertebrae in the lumbar region of the back are the largest and strongest in the movable part of the spinal column, and can be distinguished by the absence of a foramen in the transverse process, and by the absence of facets on the sides of the body. In most mammals, the lumbar region of the spine curves outward.

The actual spinal cord (medulla spinalis) terminates between vertebrae one and two of this series, called L1 and L2. The nervous tissue that extends below this point are individual strands that collectively form the cauda equina. In between each lumbar vertebra a nerve root exits, and these nerve roots come together again to form the largest single nerve in the human body, the sciatic nerve. The sciatic nerve runs through the back of each leg and into the feet. This is why a disorder of the low back that affects a nerve root, such as a spinal disc herniation, can cause pain that radiates along the sciatic nerve (sciatica) down into the foot.

There are several muscles in the low back that assist with rotation, flexibility and strength. These muscles are susceptible to injury, especially while lifting heavy objects, or lifting while twisting. A low back muscle strain can be extremely painful but will usually heal within a few days or weeks.

The lumbar portion of the spine bears the most body weight and also provides the most flexibility, a combination that makes it susceptible to injury and wear and tear over time. This is why low back pain is so prevalent.

See also

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Translations: Lumbar
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Dansk (Danish)
adj. - lumbal, lænde-
n. - lumbal

idioms:

  • lumbar puncture    lumbalpunktur, rygmarvsprøve

Nederlands (Dutch)
lumbaal, van/in de lage rug

Français (French)
adj. - lombaire
n. - lombes

idioms:

  • lumbar puncture    ponction lombaire

Deutsch (German)
adj. - Lenden...
n. - Lendenwirbel, Lendennerv, Lumbalarterie

idioms:

  • lumbar puncture    (Med.) Lumbalpunktion

Ελληνική (Greek)
adj. - (ανατ.) οσφυϊκός

idioms:

  • lumbar puncture    οσφυϊκή παρακέντηση

Italiano (Italian)
lombare

idioms:

  • lumbar puncture    puntura lombare

Português (Portuguese)
adj. - lombar

idioms:

  • lumbar puncture    acupuntura vertebral

Русский (Russian)
поясничный

idioms:

  • lumbar puncture    спинномозговая пункция

Español (Spanish)
adj. - lumbar
n. - lumbar

idioms:

  • lumbar puncture    punción lumbar

Svenska (Swedish)
adj. - lumbal, länd-

中文(简体)(Chinese (Simplified))
腰的, 腰部的, 腰动脉, 腰椎, 腰神经

idioms:

  • lumbar puncture    腰椎穿刺

中文(繁體)(Chinese (Traditional))
adj. - 腰的, 腰部的
n. - 腰動脈, 腰椎, 腰神經

idioms:

  • lumbar puncture    腰椎穿刺

한국어 (Korean)
adj. - 허리의, 요추의, 허리 동맥의
n. - 요추, 요동 정맥, 요신경

日本語 (Japanese)
n. - 腰動脈, 腰椎
adj. - 腰の, 腰椎の

idioms:

  • lumbar puncture    腰椎穿刺

العربيه (Arabic)
‏(صفه) قطني, ذو علاقه بأسفل الظهر‏

עברית (Hebrew)
adj. - ‮של המותניים, מותני‬
n. - ‮חוליה או עורק במותניים‬


 
 

 

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Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.  Read more
Sports Science and Medicine. The Oxford Dictionary of Sports Science & Medicine. Copyright © Michael Kent 1998, 2006, 2007. All rights reserved.  Read more
Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved.  Read more
Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Lumbar" Read more
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