Psoas Major: Difference between revisions
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== Origin<br> == | == Origin<br> == | ||
The psoas muscle is anatomically considered to have superficial and deep parts owing to the presence of branches of the lumbar plexus running through it. | |||
<br> | Superficial part - overlies the lumbar plexus and takes origin from the sides of the T12 and L1 to L4 vertebrae including the intervening intervertebral discs. | ||
The deep part which lies mainly deep to the branches of the lumbar plexus takes origin from the transverse processes of lumbar vertebrae L1 to L5.<br> | |||
== Insertion == | == Insertion == |
Revision as of 17:17, 24 February 2016
Original Editor - Oyemi Sillo
Lead Editors - Vidya Acharya, Samrah khan, Lucinda hampton, Kim Jackson, Oyemi Sillo, George Prudden, Joao Costa, Maram Salem, Samson Chengetanai, Kardelen Aktas and Rachael Lowe
Description
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Psoas Major is a long fusiform muscle placed on the side of the lumbar region of the vertebral column and brim of the lesser pelvis. Cite error: Invalid <ref>
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Origin
[edit | edit source]
The psoas muscle is anatomically considered to have superficial and deep parts owing to the presence of branches of the lumbar plexus running through it.
Superficial part - overlies the lumbar plexus and takes origin from the sides of the T12 and L1 to L4 vertebrae including the intervening intervertebral discs.
The deep part which lies mainly deep to the branches of the lumbar plexus takes origin from the transverse processes of lumbar vertebrae L1 to L5.
Insertion[edit | edit source]
Lesser trochanter of the femurCite error: Invalid <ref>
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Nerve Supply[edit | edit source]
Branches from the ventral rami of lumbar spinal nerves (L1, L2, and L3) before they join to form the lumbar plexus.Cite error: Invalid <ref>
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Blood Supply[edit | edit source]
The muscle receives blood from the four lumbar arteries from the aorta, from small branches of the renal arteries, from small muscular branches of the common iliac artery, and from the deep circumflex iliac artery.Cite error: Invalid <ref>
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Action
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- Flexion of the thigh at the hip
- Minimal action in lateral rotation and abduction of the thighCite error: Invalid
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Function
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Stabilizes the lumbar spine Cite error: Invalid <ref>
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Recent Related Research (from Pubmed)[edit | edit source]
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