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Self Tests

Muscles - Origins and Insertions 3

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