WordNet

of your secondary field of academic concentration or specialization
limited in size or scope; "a small business"; "a newspaper with a modest circulation"; "small-scale plans"; "a pocket-size country" (同)modest, small, small-scale, pocket-size, pocket-sized
not of legal age; "minor children" (同)nonaged, underage
warranting only temporal punishment; "venial sin" (同)venial
inferior in number or size or amount; "a minor share of the profits"; "Ursa Minor"
lesser in scope or effect; "had minor differences"; "a minor disturbance"
of a scale or mode; "the minor keys"; "in B flat minor"
of lesser importance or stature or rank; "a minor poet"; "had a minor part in the play"; "a minor official"; "many of these hardy adventurers were minor noblemen"; "minor back roads"
of lesser seriousness or danger; "suffered only minor injuries"; "some minor flooding"; "a minor tropical disturbance"
of the younger of two boys with the same family name; "Jones minor"
either of two muscles of the abdomen and pelvis that flex the trunk and rotate the thigh

PrepTutorEJDIC

『小さいほうの,少ない』 / (階級・地位・重要性などが)『劣ったほうの』,重要でない / 重大ではない / 未成年の / (音楽で)短調の / 未成年者 / (大学の科目・課程の)副専攻科目 / (音楽で)短調 / 《the minors》《米》=minor league

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/03/01 00:06:40」(JST)

wiki en

The psoas minor is a long, slender skeletal muscle which, when present, is located anterior to the psoas major muscle.^[1]^[2]

Structure

Psoas minor originates from the vertical fascicles inserted on the last thoracic and first lumbar vertebrae. From there, it passes down onto the medial border of the psoas major, and is inserted to the innominate line and the iliopectineal eminence. Additionally, it attaches to and stretches the deep surface of the iliac fascia and occasionally its lowermost fibers reach the inguinal ligament.^[3] Variations occur, however, and the insertion on the iliopubic eminence sometimes radiates into the iliopectineal arch.^[4]

Morphology

The psoas minor is considered inconstant and is often absent, only being present in about 27% of human specimens studied. ^[5] It has an average length of about 24cm, of which about 7.1cm is muscle tissue and about 17cm is tendon.

Function

The psoas minor is a weak flexor of the lumbar vertebral column.

Additional images

Right hip bone, internal surface
Right femur, posterior surface
Psoas minor muscle
Psoas minor muscle
Psoas minor muscle

Notes

^ Tank (2005), p 93
^ Gray (2008), p 1372
^ Bendavid (2001), p 58
^ Platzer (2004), p 234
^ Mcg Farias (1 Jan. 2012). Morphological and morphometric analysis of Psoas Minor Muscle in cadavers. ResearchGate. Retrieved from https://www.researchgate.net/publication/280236296_Morphological_and_morphometric_analysis_of_Psoas_Minor_Muscle_in_cadavers

References

Bendavid, Robert; Abrahamson, Jack; Arregui, Maurice E. (2001). Abdominal Wall Hernias: Principle and Management. Springer. ISBN 0-387-95004-4.
Platzer, Werner (2004). Color Atlas of Human Anatomy, Vol 1: Locomotor system (5th ed.). Thieme. ISBN 3-13-533305-1. (ISBN for the Americas 1-58890-159-9.)
Tank, Patrick W. (2005). Grant's Dissector (13th ed.). Hagerstown, MD: Lippincott Williams & Wilkins. ISBN 0-7817-5484-4.
Gray, Henry; Standring, Susan (2008). Gray's Anatomy - The Anatomical Basis of Clinical Practice (40th ed.). Churchill Livingstone - Elsevier. ISBN 978-0-443-06684-9.

External links

-1254817712 at GPnotebook

UpToDate Contents

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English Journal

Morphological and biochemical assessment of apoptosis in different skeletal muscles of bulls during conditioning.

Cao J, Sun W, Zhou G, Xu X, Peng Z, Hu Z.SourceKey Laboratory of Meat Processing and Quality Control, Ministry of Education, Nanjing Agricultural University, Nanjing, Jiangsu, P. R. China.
Journal of animal science.J Anim Sci.2010 Oct;88(10):3439-44. Epub 2010 Jun 4.
Apoptosis is a form of cell death that involves the changes of mitochondrial function and the regulated activation of caspase cascades, which selectively cleave cytoskeleton proteins and catalyze the changes of cell organelles and morphological structure. The changes of mitochondrial function, cell
PMID 20525926

Metabolic profile of the perivertebral muscles in small therian mammals: implications for the evolution of the mammalian trunk musculature.

Schilling N.SourceInstitute of Systematic Zoology and Evolutionary Biology, Friedrich-Schiller-University Jena, Erbertstrasse 1, Jena, Germany. nadja.schilling@uni-jena.de
Zoology (Jena, Germany).Zoology (Jena).2009;112(4):279-304. Epub 2009 Apr 16.
In order to gain a better understanding of the ancestral properties of the perivertebral muscles of mammals, this study investigated the fiber type composition of these muscles in six small, extant therians (two metatherians and four eutherians) similar in body shape to early mammals. Despite a few
PMID 19375292

「小腰筋」

Psoas minor muscle
	Muscles of the iliac and anterior femoral regions (psoas minor visible near top right)
Details
Origin	Lateral surface bodies of T12 and L1 vertebrae and intervening intervertebral disc
Insertion	Pectineal line and iliopubic eminence
Nerve	Anterior ramus of nerve L1
Actions	Weak trunk flexor
Antagonist	Gluteus maximus
Identifiers
Latin	Musculus psoas minor
MeSH	A02.633.567.825
Dorlands; /Elsevier	m_22/12550283
TA	A04.7.02.005
FMA	22350
	Anatomical terms of muscle [edit on Wikidata]