Knee & Thigh Muscle O,I,A

Rectus Femoris Origin

• anterior inferior iliac spine

• anterior and lateral part of femur

• anterior superior iliac spine

• pubis

Rectus Femoris Insertion

• tibial tuberosity

• middle linea aspera of femur

• head of fibula and lateral tibia

• gluteal tuberosity of the femur

Rectus Femoris Action

Vastus Lateralis Origin

• lateral condyle of the femur

• ischial tuberosity and distal linea aspera of femur

• greater trochanter and linea aspera of femur

• anterior inferior iliac spine

Vastus Lateralis Insertion

• tibial tuberosity

• anterior surface of the greater trochanter

• lateral condyle of tibia

• linea aspera and adductor tubercle of femur

Vastus Lateralis Action

Vastus Intermedius Origin

• pubis

• anterior and lateral part of femur

• outer surface of the ilium

• lateral condyle of the femur

Vastus Intermedius Insertion

• tibial tuberosity

• proximal linea aspera of femur

• linea aspera and adductor tubercle of femur

• lateral condyle of tibia

Vastus Intermedius Action

Vastus Medialis Origin

• linea aspera of femur

• greater trochanter and linea aspera of femur

• proximal linea aspera of femur

• lateral condyle of the femur