Pectineus muscle
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{{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]]