Human Anatomy: Muscle Groups

Human Anatomy

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Muscle Function & Other Pertinent Medical Information
ORIGIN: Straight head: anterior inferior iliac spine. Reflected head: ilium above acetabulum
INSERTION: Quadriceps tendon to patella , via ligamentum patellae into tubercle of tibia
ACTION: Extends leg at knee. Flexes thigh at hip
NERVE: Posterior division of femoral nerve (L3, 4)

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