Pectineus muscle 1633440 223059492 2008-07-02T11:31:41Z Vedran12 7322109 interwiki hr {{Muscle infobox | Name = Pectineus | Latin = musculus pectineus | GraySubject = 128 | GrayPage = 472 | Image = Anterior Hip Muscles 2.PNG | Caption = The pectineus and nearby muscles | Image2 = Gray546.png | Caption2 = Structures passing behind the [[inguinal ligament]]. (Pectineus visible at bottom right.) | Origin = [[pubis (bone)|pubis]] - [[superior pubic ramus]] | Insertion = [[Lesser trochanter]], [[linea aspera]] | Blood = [[Obturator artery]] | Nerve = [[Femoral nerve]], sometimes [[obturator nerve]] | Action = Thigh - [[flexion]], [[adduction]], medial rotation | MeshName = | MeshNumber = | DorlandsPre = m_22 | DorlandsSuf = 12550120 | }} The '''pectineus muscle''' is a flat, quadrangular [[muscle]], situated at the anterior part of the upper and medial aspect of the [[thigh]]. It can be classified in the [[medial compartment of thigh]]<ref name="isbn0-443-07168-3">{{cite book |author=Ellis, Harold; Susan Standring; Gray, Henry David |title=Gray's anatomy: the anatomical basis of clinical practice |publisher=Elsevier Churchill Livingstone |location=St. Louis, Mo |year=2005 |pages=518 |isbn=0-443-07168-3 |oclc= |doi=}}</ref> (when the function is emphasized) or the [[anterior compartment of thigh]] (when the nerve is emphasized).<ref>{{NormanAnatomy|medialthigh}}</ref> ==Action== It is one of the muscles primarily responsible for hip flexion. It also adducts and medially rotates the thigh. ==Innervation== Innervation is by the [[femoral nerve]] (L2 and L3) and occasionally a branch of the [[obturator nerve]]. ==Origin and insertion== It arises from the [[pectineal line (pubis)|pectineal line]] of the [[pubis (bone)|pubis]] and to a slight extent from the surface of bone in front of it, between the [[iliopectineal eminence]] and tubercle of the pubis, and from the fascia covering the anterior surface of the muscle; the fibers pass downward, backward, and lateralward, to be inserted into a the [[pectineal line (femur)|pectineal line of the femur]] which leads from the [[lesser trochanter]] to the [[linea aspera]]. ==Additional images== <gallery> Image:Gray235.png|Right hip bone. External surface. Image:Gray344.png|Structures surrounding right hip-joint. Image:Gray430.png|Muscles of the iliac and anterior femoral regions. Image:Gray433.png|Deep muscles of the medial femoral region. Image:Gray549.png|The left femoral triangle. Image:Gray823.png|The lumbar plexus and its branches. </gallery> ==References== {{reflist}} ==External links== * {{GPnotebook|-1301610416}} * {{MuscleLoyola|pect}} * {{SUNYAnatomyFigs|12|02|05}} - "Muscles of the anterior (extensor) compartment of the thigh." * {{SUNYAnatomyFigs|12|03|04}} - "Deep muscles of the anterior thigh." * {{ViennaCrossSection|pelvis/pelvis-e12-15}} {{Gray's}} [[Category:Thigh muscles]] {{Muscles of lower limb}} {{muscle-stub}} [[de:Musculus pectineus]] [[es:Pectíneo]] [[hr:Grebenski mišić]] [[ja:恥骨筋]] [[pl:Mięsień grzebieniowy]] [[fi:Harjannelihas]] [[sl:Grebenka]]