◔
Anterior Compartment of the Thigh
From WikiMSK
This article is a stub.
Components
| Anterior leg compartment muscles | Origin | Insertion | Action | Nerve roots | Nerves |
|---|---|---|---|---|---|
| Articularis Genus | Two slips from anterior femur below vastus intermedialius | Apex of suprapatellar bursa | Retracts bursa as knee extends | Posterior division of femoral nerve (L3 4) | |
| Rectus Femoris | Straight head: anterior inferior iliac spine. Reflected head: ilium above acetabulum | Quadriceps tendon to patella , via ligamentum patellae into tubercle of tibia | Extends leg at knee. Flexes thigh at hip | Posterior division of femoral nerve (L3 4) | |
| Vastus Intermedius | Anterior and lateral shaft of femur | Quadriceps tendon to patella, via ligamentum patellae into tubercle of tibia | Extends knee | Posterior division of femoral nerve (L3 4) | |
| Vastus Lateralis | Upper intertrochanteric line, base of greater trochanter, lateral linea aspera, lateral supracondylar ridge and lateral intermuscular septum | Lateral quadriceps tendon to patella, via ligamentum patellae into tubercle of tibia | Extends knee | Posterior division of femoral nerve (L3 4) | |
| Vastus Medialis | Lower intertrochanteric line, spiral line, medial linea aspera and medial intermuscular septum | Medial quadriceps tendon to patella and directly into medial patella, via ligamentum patellae into tubercle of tibia | Extends knee. Stabilizes patella | Posterior division of femoral nerve (L3 4) |
Videos
