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Unit 3 Kines Knee
Knee - Origin, Insertion, & Action
Term | Definition |
---|---|
Rectus Femoris, Vastus Lateralis, Vastus Intermedius, Vastus Medialis | Action: Knee Extension (4) |
Semimembranosus, Semitendinosus, and Popliteus | Action: Knee Flexion and Internal Rotation (3) |
Gastrocnemius | Action: Knee Flexion |
Gracilis | Action: Weak knee flexion and internal rotation |
Biceps Femoris | Action: Knee Flexion and External Rotation |
Gracilis | Origin: Anteromedial edge of the pubic ramus |
Gastrocnemius | Origin: Posterior condyles of femur |
Popliteus | Origin: Posterior surface of lateral condyle of femur |
Semimembranosus, Semitendinosus, and Biceps Femoris | Origin: Ischial Tuberosity (3) |
Vastus Medialis | Origin: Length of femur, medial condyloid ridge |
Vastus Intermedius | Origin: Upper anterior surface of femur |
Vastus Lateralis | Origin: Intertrochanteric line, greater trochanter |
Rectus Femoris | Origin: Anterior, inferior iliac spine, groove above acetabulum |
Rectus Femoris | Insertion: Superior patella, tibial tuberosity |
Vastus Lateralis | Insertion: Lateral border of patella, tibial tuberosity |
Vastus Intermedius | Insertion: Upper border of patella, tibial tuberosity |
Vastus Medialis | Insertion: Medial half of upper border of patella, tibial tuberosity |
Semitendinosus | Insertion: Anterior medial surface of tibia |
Semimembranosus | Insertion: Posteromedial surface of tibial condyle |
Popliteus | Insertion: Upper posterior medial surface of tibia |
Gastrocnemius | Insertion: Posterior calcaneus |
Gracilis | Insertion: Anterior medial surface of the tibia, just below the medial condyle |
Biceps Femoris | Insertion: Lateral condyle of tibia, fibular head |