- Psoas minor muscle
Muscle infobox
Name = Psoas minor muscle
Latin = m. psoas minor
GraySubject = 127
GrayPage = 467
Caption = Muscles of the iliac and anterior femoral regions. (Psoas minor visible near top right.)
Origin = Side of T12+L1 and IV Disc between
Insertion =Pectineal line andiliopectineal eminence
Action = Weak trunkflexor
Blood =
Nerve =Lumbar plexus Platzer (2004), p 234]
Antagonist = Gluteus maximus
MeshName = Psoas+Muscles
MeshNumber = A02.633.567.825
DorlandsPre = m_22
DorlandsSuf = 12550283The psoas minor is a long, slender
skeletal muscle that, when present, is placed in front of thepsoas major muscle . It is absent in 40% of individuals. [Tank (2005), p 93]Course
Psoas minor originates from the vertical
fascicle s inserted on the last thoracic and firstlumbar vertebra e. From there, it passes down onto the medial border of the psoas major, and is inserted to the innominate line and theiliopectineal eminence . Additionally, it attaches to and stretches the deep surface of theiliac fascia and, occasionally, its lowermost fibers reaches theinguinal ligament .Bendavid (2001), p 58] Variations occur, however, and the insertion on the iliopubic eminence sometimes radiates into theiliopectineal arch .
=AdditionalNotes
References
* cite book
url = http://books.google.se/books?id=ai6fOllPH44C&pg=RA1-PA58
title = Abdominal Wall Hernias: Principle and Management
first = Robert | last = Bendavid | coauthors = Abrahamson, Jack; Arregui, Maurice E.
publisher = Springer | year = 2001
isbn = 0387950044
* cite book
title = Color Atlas of Human Anatomy, Vol 1: Locomotor system
first = Werner | last = Platzer
edition = 5th | publisher = Thieme
isbn = 3-13-533305-1 | year = 2004 (ISBN for the Americas 1-58890-159-9.)
* cite book
first = Patrick W. | last = Tank
title = Grant's Dissector
publisher = Lippincott Williams & Wilkins | location = Hagerstown, MD
year = 2005 | edition = 13th ed.
isbn = 0-7817-5484-4External links
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