Psoas minor muscle
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| Psoas minor muscle | ||
|---|---|---|
 | ||
| Muscles of the iliac and anterior femoral regions. (Psoas minor visible near top right.) | ||
| Latin | m. psoas minor | |
| Gray's | subject #127 467 | |
| Origin: | Side of T12+L1 and IV Disc between | |
| Insertion: | Pectineal line and iliopectineal eminence | |
| Artery: | ||
| Nerve: | L1 | |
| Action: | Weak trunk flexor | |
| Antagonist: | Gluteus maximus | |
| MeSH | Psoas+Muscles | |
| Dorlands/Elsevier | m_22/12550283 | |
The psoas minor is a long, slender muscle that is placed (when present) in front of the psoas major muscle. It is absent in 40% of individuals.[1]
It arises from the sides of the bodies of the twelfth thoracic and first lumbar vertebrae and from the intervertebral discs separating them. It ends in a long flat tendon which is inserted into the pectineal line and iliopectineal eminence, and, by its lateral border, into the iliac fascia.
References
Additional images
 Right hip bone. Internal surface. |
 Right femur. Posterior surface. |
External links
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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
cs:Malý bedrovecde:Musculus psoas minor it:Piccolo psoas ja:小腰筋
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
