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Human Anatomy: Muscle Groups


Human Anatomy



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Muscle Function & Other Pertinent Medical Information
- BICEPS FEMORIS -
ORIGIN: Long head: upper inner quadrant of posterior surface of ischial tuberosity. Short head:middle third of linea aspera, lateral supracondylar ridge of femur
INSERTION: Styloid process of head of fibula. lateral collateral ligament and lateral tibial condyle
ACTION: Flexes and laterally rotates knee. Long head extends hip
NERVE: Long head: tibial portion of sciatic nerve. Short head: common peroneal portion of sciatic nerve (both L5, S1)






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