The pectineus muscle is a small muscle in the mid-thigh of the human leg. Its role is in the flexing and adducting of the thigh and it is classified, due to its location and role, as a pelvic muscle. It is supplied with oxygen and nutrients by the femoral and deep femoral arteries of the leg and pelvis. The pectineus muscle is located close to other muscles of the pelvis and thigh, such as the adductor longus, and forms part of the femoral triangle. It runs from the pelvis and along the femur in the upper leg. However, this muscle is relatively small in comparison to other muscles of the thigh. This muscle is unusual in that its placement can differ slightly from patient to patient. It lies on the boundary of two compartments (functional groups) of muscles in the leg. The pectineus muscle can be placed in the anterior or the medial compartment. It can also be enervated by two different nerves.
Written and medically reviewed by the Healthline Editorial Team
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In Depth: Pectineus

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