Quadriceps – Rectus femoris

Nov 10, 2021 | Muscle


Anterior head—anterior inferior iliac spine
Posterior head—ilium above acetabulum


Patella, then by patellar ligament to tuberosity of the tibia


Extends leg at knee joint, flexes thigh


Femoral nerve (L2–L4)


This muscle is used when thigh flexion and leg extension are needed together, such as in kicking a football. In walking, the quadriceps prevent the knee from flexing during heel strike and early support phase

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