Quadriceps Femoris

Origin

• Formed by the confluence of four muscles
  • Rectus Femoris
  • Vastus Lateralis
  • Vastus Intermedius
  • Vastus medialis

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Insertion

• All four muscles coalesce into the quad tendon, which inserts on the Patella

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Actions

• Extension of the Knee
  • Rectus Femoris is a weak hip flexor

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Vascular Supply

• Femoral Artery

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Innervation

• Femoral Nerve

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Clinical Significance

• Part of the Quadriceps Femoris in the Anterior Compartment
  • Rectus Femoris
  • Vastus Lateralis
  • Vastus Intermedius
  • Vastus Medialis
• Pathology
  • Quadriceps Tendon Rupture
  • Quad Strain
  • Quad Tendinitis
  • Acute Compartment Syndrome

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See Also

• Thigh Anatomy (Main)
• Hip Pain (Main)
• Knee Pain (Main)

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