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image: Vastus Medialis
Vastus Medialis

Vastus Medialis

 Articulations :

 Action :

  • Extends the knee.

Origin :

  • Inferior portion of intertrochanteric line, spiral line, medial lip of linea aspera, superior part of medial supracondylar ridge of femur and medial intermuscular septum.

Insertion :

  • Medial base and border of patella; also forms the medial patellar retinaculum and medial side of quadriceps femoris tendon.

Innervation :

  • Muscular branches of femoral nerve.

Arterial Supply :

  • Femoral artery,
  • Profunda femoris artery
  • and superior medial genicular branch of popliteal artery

Depth :

  • Superficial
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