Psoas  major

origin: transverse processes and bodies of 12th thoracic and all lumbar vertebrae

Insertion: lesser trochanter of femur

Function: flexion of trunk, flexion of thigh, lateral rotation of thigh

Iliacus

Origin: Iliac fossa

Insertion: Lesser trochanter of femur

Function: flexion of trunk, flexion of thigh, lateral rotation of thigh

Gluteus   maximus

Origin: Posterior iliac crest, sacrum and coccyx

Insertion: Gluteal tuberosity of femur and iliotibial tract

Function: Extension of thigh, Lateral rotation of thigh

Gluteus  medius

Origin: lateral surface of ilium

Insertion: Greater trochanter of femur

Function: Abduction of thigh, Lateral rotation of thigh, Flexion of thigh, Medial rotation of thigh, Extension of thigh

Gluteus  minimus

Origin:lateral surface of ilium

Insertion:Greater trochanter of femur

Function: Abduction of thigh, Lateral rotation of thigh, Flexion of thigh, Medial roation, Extension of thigh

Tensor  fascia  latae

Origin: Anterior superior iliac spine

Insertion: Lateral condyle of tibia (via iliotibial tract)

Function: Abduction of thigh, Extension of leg, Flexion of thigh

Sartorius

Origin: Anterior superior iliac spine

Insertion: Proximal medial shaft of tibia

Function: Flexion of thigh, Lateral rotation of thigh, Abduction of thigh, Flexion of leg

Rectus  femoris

Origin: Anterior inferior iliac spine

Insertion: Patella

Function: Flexion of thigh, Extension of leg

Vastus  lateralis

Origin: Intertrochanteric line and lines asperaof femur

Insertion: Patella

Function: Extension of leg

Vastus  medialis

Origin: Intertrochanteric line and linea aspera of femur

Insertion: Patella

Function: Extenstion of leg

Vastus  intermedius

Origin: Anterior and lateral shaft of femur

Insertion: Patella

Function: Extension of leg

Gracilis

Origin: Pubis

Insertion: Proximal medial shaft of tibia

Function: Flexion of thigh, Flexion of leg, Adduction of thigh

Pectineus

Origin: Pubis

Insertion: Proximal medial shaft of femur

Function: Flexion of thigh, Lateral rotation of thigh, adduction of thigh

Adductor longus

Origin: Pubis

Insertion: Linea aspera of femur

Function: Flexino of thigh, Lateral rotation of thigh, Adduction of thigh

Adductor  brevis

Origin: Pubis

Insertion: Linea aspera of femur

Function: Flexion of thigh, Lateral rotation of thigh, Adduction of thigh

Adductor  magnus

Origin: Pubis and ishium

Insertion: Linea aspera of femur

Function: Flexion of thigh, Adduction of thigh, Extension of thigh, Lateral rotation of thigh

Semimembranosus

Origin:Ischial tuberosity

Insertion: Proximal medial shaft of tibia

Function: Extension of thigh, Flexion of leg

Semitendinosus

Origin: Ischial tuberosity

Insertion: Proximal medial shaft of tibia

Function: Extension of thigh, flexion of leg

Biceps femoris (long head)

Origin: Ischial tuberosity

Insertion: Head of fibula and lateral condyle of tibia

Function: Extenstion of thigh, Flexion of leg

Biceps femoris (short head)

Origin: Linea aspera of femur

Insertion: Head of fibula and lateral condyle of tibia

Function: Extenstion of thigh, Flextion of leg