Origin/Insertion of Muscles - Quadriceps - Rectus Femoris

The quadriceps are made up of 4 muscles:

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

Functions of the quadriceps:

• Flexes thigh at hip, extends leg at knee, adducts leg
• Allows the upper leg to move
• Reacts with the hamstrings and gastrocnemius
• Keeps leg straight when standing

Rectus Femoris:
Origin: Anterior Inferior Iliac Spine
Insertion: Quadriceps tendon to the base of the patella and onto the tibial tuberosity via the patellar ligament
Action: Flexes thigh at hip, extends leg at knee



Anterior Inferior Iliac Spine

  Tibial Tuberosity