Knee Extensor Muscles

Description

Basic illustration of the extensor mechanism of the knee

Name

• Knee Extensor Muscles
• Extensor Muscles of the Knee

Muscles

• Quadriceps Femoris
  • Rectus Femoris
  • Vastus Lateralis
  • Vastus Intermedius
  • Vastus Medialis
• Articularis Genus

Action

• Muscular component of the Knee Extensor Mechanism
• Attach to the patella via the quadriceps tendon
• Exception is the small articularis genus
• Responsible for bringing the knee into extension

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Clinical Significance

• Patellar Dislocation
• Quadriceps Contusion
• Quadriceps Tendonitis
• Extensor Mechanism Injury
• Quadriceps Tendon Rupture

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See Also

• Knee Anatomy Main
• Knee Pain Main
• Physical Exam Knee

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