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1. | Origin: Lateral epicondyle of humerus Insertion: Base of fifth metacarpal Action: Extends and adducts hand at the wrist | |
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2. | Origin: Medial epicondyle of humerus Insertion: Base of second and third metacarpals Action: Flexes and abducts hand at the wrist | |
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3. | Origin: Iliac crest, sacrum, coccyx Insertion: Iliotibial tract, linea aspera (femur) Action: Extension and lateral rotation of the thigh at the hip | |
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4. | Origin: Lateral surface of ilium Insertion: Greater trochanter (femur) Action: Abduction and medial rotation of the thigh at the hip | |
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5. | Origin: Iliac crest Insertion: Greater trochanter (femur) Action: Abduction and medial rotation of the thigh at the hip | |
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6. | Origin: Ischial tuberosity Insertion: Medial condyle of tibia Action: Flexes leg at the knee | |
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7. | Origin: Ischial tuberosity Insertion: Superomedial surface of tibia (via pes anserinus) Action: Flexes leg at the knee | |
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8. | Origin: Ischial tuberosity Insertion: Lateral condyle of tibia Action: Flexes leg at the knee | |
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9. | Origin: Linea aspera Insertion: Lateral condyle of tibia Action: Flexes leg at the knee | |
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10. | Origin: Anterior superior iliac spine Insertion: Superomedial surface of tibia (via pes anserinus) Action: Flexes and laterally rotates thigh at the hip; flexes leg at the knee | |
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