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“hamstrings” - the semimembranosus muscle forms part of the hamstrings muscle group, along with biceps femoris and semitendinosus.

Semimembranosus

• Udspring: Et hoved fra hver side af nederste bageste del af lårbenet.
• Hæfte: i akillessenen og fæster på hælbenet.

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Funktion

• Flexes the leg at the knee..

  This means that the semimembranosus muscle bends the leg at the knee joint such that there is a decrease in the angle between the lower leg and the upper leg.

• Extends the leg at the hip..

  This means that the semimembranosus muscle straightens the hip joint such that there is an increase in the angle between the upper leg and the torso.

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