Vastus Medialis

Description

E. Anterior attachments of extensors of knee. F. Quadriceps femoris. G. Vastus intermedius. H. Posterior attachments of extensors of knee. I. Vastus medialis and lateralis.

The different muscles in the quadriceps. The vastus intermedius is not visible from the front view. On the left: Original image is extracted from Gray and Lewis (1918). On the right: T1W MRI of a right leg from MUST dataset.

Medial patellofemoral ligament (MPFL), Medial patellomenisceal ligament (MPML), Medial patellotibial ligamente (MPTL), Medial retinaculum (MR), Vastus medialis obliquus (VMO), Rectus femoris (RF), Medial collateral ligament (MCL).

Origin

• Medial side of Femur, along linea aspera and intertrochanteric line

Insertion

• Patella via quadriceps tendon

Actions

• Extension of the Knee

Vascular Supply

• Femoral Artery
• Lateral circumflex femoral artery
• Perforating arteries of deep femoral artery

Innervation

• Femoral Nerve

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Clinical Significance

Part of the Quadriceps Femoris

• Rectus Femoris
• Vastus Lateralis
• Vastus Intermedius
• Vastus Medialis

Pathology

• Quad Strain
• Quad Tendinitis
• Quad Contusion
• Acute Compartment Syndrome

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See Also

• Thigh Anatomy Main
• Hip Pain Main
• Knee Pain Main

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