Quadratus femoris muscle

Quadratus femoris muscle

Infobox Muscle
Name = PAGENAME
Latin = musculus quadratus femoris
GraySubject = 128
GrayPage = 477


Caption = The quadratus femoris and nearby muscles


Caption2 = Muscles of the gluteal and posterior femoral regions with quadratus femoris muscle highlighted
Origin = Ischial tuberosity
Insertion = Intertrochanteric crest
Blood = Inferior gluteal artery
Nerve = Nerve to quadratus femoris (L4-S1)
Action = lateral rotation and adduction of thigh"Thieme Atlas of Anatomy" (2006), p 424]
Antagonist =
MeshName =
MeshNumber =
DorlandsPre = m_22
DorlandsSuf = 12550374
The quadratus femoris is, as its name implies, a flat, quadrilateral skeletal muscle. Located on the posterior side of the hip joint, it is a strong lateral rotator and adductor of the thigh,femoral head in the acetabulum.

Course

It originates on the lateral border of the ischial tuberosity of the ischium of the pelvis. From there, it passes laterally to its insertion on the posterior side of the head of the femur: the quadrate tubercle on the intertrochanteric crest and along the quadrate line, the vertical line which runs downward to bisect the lesser trochanter on the medial side of the femur. Along its course, quadratus is aligned edge to edge with the inferior gemellus above and the adductor magnus below, so that its the upper and lower borders run horizontal and parallel.Mcminn (2003), p 166]

At its origin, the upper margin of the adductor magnus is separated from it by the terminal branches of the medial femoral circumflex vessels.

A bursa is often found between the front of this muscle and the lesser trochanter. Sometimes absent.


=Additional

Notes

References

* cite book
title = Last's Anatomy Regional and Applied
url = http://books.google.se/books?id=0qaiox_Vqd4C&pg=PA166
first = R.M.H. | last = Mcminn
publisher = Elsevier Australia
isbn = 0729537528 | year = 2003
* 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
title = Thieme Atlas of Anatomy
publisher = Thieme
isbn = 3-13-1420511-2 | year = 2006 (ISBN for the Americas 1-58890-419-9)

External links

*
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* [http://www.ptcentral.com/muscles/musclelegs.html#quadratus%20femoris PTCentral]
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