Quadratus Lumborum: Difference between revisions

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=== Actions  ===
=== Actions  ===


Quadratus Lumborum fixes the12th rib to stabilize diaphragm attachments during inspiration
Quadratus Lumborum fixes the12th rib to stabilise diaphragm attachments during inspiration  


Lateral flexes the vertebral column
Lateral flexes the vertebral column  


Extends lumbar vertebrae
Extends lumbar vertebrae

Revision as of 17:38, 15 August 2015

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Description[edit | edit source]

The word quadratus comes from the Latin word "quadrus" meaning “square” while Lumborum comes from the Latin word "lumbus" for “loin.”

A thick, irregular, quadrilateral-shaped muscle sheet that lies in the posterior abdominal wall.[1]

Anatomy[edit | edit source]

Origin[2][edit | edit source]

Posterior Iliac Crest

Insertion[2][edit | edit source]

Medial half of 12th rib and transverse processes of lumbar vertebrae

Nerve Supply[edit | edit source]

Subcostal nerve (T12)
Iliohypogastric and Ilioinguinal nerve (both from L1)
Branches from the ventral rami (L2 and L3)

Blood Supply[1][edit | edit source]

Branches of the subcostal artery
Branches of the lumbar arteries
The lumbar branch of the iliolumbar artery
The arteria lumbalis ima from the median sacral artery.

Function[edit | edit source]

Actions[edit | edit source]

Quadratus Lumborum fixes the12th rib to stabilise diaphragm attachments during inspiration

Lateral flexes the vertebral column

Extends lumbar vertebrae

Functional contributions[edit | edit source]

Trigger Point Referral Pattern[edit | edit source]

Techniques[edit | edit source]

Palpation[edit | edit source]

Length Tension Testing[edit | edit source]

Treatment[edit | edit source]

Recent Related Research (from Pubmed)[edit | edit source]

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Resources[edit | edit source]

References[edit | edit source]

References will automatically be added here, see adding references tutorial.

  1. 1.0 1.1 Jarvis, M. (2015). Quadratus lumborum | Radiology Reference Article | Radiopaedia.org. Radiopaedia.org. Retrieved 15 August 2015, from http://radiopaedia.org/articles/quadratus-lumborum
  2. 2.0 2.1 Anatomyexpert.com,. (2015). AnatomyEXPERT: Quadratus lumborum - Structure Detail. Retrieved 15 August 2015, from http://www.anatomyexpert.com/app/structure/5307/