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Vastus Medialis
Region: Hip & Thigh Muscles · All hip & thigh muscles
Vastus Medialis at a glance
| Origin | Intertrochanteric line and medial lip of the linea aspera of the femur |
|---|---|
| Insertion | Medial border of the patella and quadriceps tendon to the tibial tuberosity |
| Actions | Straightens the knee (extension); Its lowest fibres (VMO) hold the patella in line during the last degrees of extension |
| Nerve supply | Femoral nerve (L2–L4) |
◆ Good to know
The teardrop-shaped VMO above the inner knee is the first part of quadriceps to waste after knee injury or surgery.
More Hip & Thigh Muscles
Please note: This page is an anatomy education summary for students and curious readers, not medical advice. Attachment points are given in their classic short form; individual anatomy varies, and detailed dissection-level descriptions belong in an anatomy atlas.