Pectineus Muscle – Origin, Insertion, Function & Innervation – Anatomy | Kenhub

Pectineus Muscle – Origin, Insertion, Function & Innervation – Anatomy | Kenhub

Hello again, everyone. It’s Matt from Kenhub!
And in this tutorial, we will discuss the pectineus muscle. The pectineus muscle is one of the six hip
adductors. It runs from the superior pubic ramus to the pectineal line and linea aspera
of the femur. The adductors of the hip are part of the inner
hip musculature, and they range from the lower pelvic bone to the femur and knee region,
thus lying between the extensor and flexor group of the thigh muscles. The hip adductors shape the surface anatomy
of the medial thigh. The innervation is mainly supplied by the
obturator nerve which arises from the lumbar plexus and reaches the adductors through the
obturator canal. The pectineus muscle is additionally innervated
by the femoral nerve. As the name suggests, the main function of
the hip adductors is the adduction of the hip joint. The pectineus muscle also supports
external rotation and flexion. The hip adductors are particularly used when
crossing ones legs. Overall, they play an important role in balancing the pelvis during
standing and walking. This video is more fun than reading a textbook,
right? If you want more videos, interactive quizzes,
articles, and an atlas of human anatomy, click on the “Take me to Kenhub” button. It is time to say goodbye to your old textbooks
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7 Replies to “Pectineus Muscle – Origin, Insertion, Function & Innervation – Anatomy | Kenhub”

  1. Hello Matt, I can't help but to wonder if the pectineus muscle is a medial/internal rotator as opposed to an external/lateral rotator. Due to the point of insertion i would think that when contraction occurs the leg would medially rotate.

  2. Hi Matt,
    Great video, but I'm a bit confused:
    If the hip adductors are used for crossing ones legs, isn't the pectineus a hip INTERNAL rotator, too?
    Or is it just a hip adductor (going in), as well as a hip EXTERNAL rotator?

    Also, in your opinion, is it possible to ISOLATE the upper groin muscles (including the pectineus), when exercising?

    Thanks 🙂

  3. I am having trouble with the action of muscles I can not Imagine how they are doing the movements what should I do Matt :(((

  4. Hi there! What did you think of our short video tutorial on the pectineus muscle?! We sure liked it! Ready to test your knowledge? Try our challenging quiz on the hip adductors

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