LAB lower limb muscles

Gluteus Maximus

Origin: Ilium

Insertion: Posterior femur

Action: extension of femur

Gluteus Medius

Origin: Ilium

Insertion: greater trocanter

Action: abduction of femur

Tensor fascia latae

Origin: anterior superior iliac spine

Insertion: lateral condyle of tibia

Action: abducts and flexes thigh

• Adductor Longus

Origin: Pubis

Insertion: linea aspera of femur

action: medially rotates femur

Adductor Magnus

Origin: pubis

Insertion: linea aspera

Action: adducts thight

• Biceps Femoris

Origin: linea aspera of femurs

Insertion: head of fibula

Action: lowers leg

Semitedinosus

Origin: ischial tiberosity

Insertion: Tibia

Action: lowers leg

• Semimembranosus

Origin: iscial tuberosity

Insertion: medial condyle of tibia

Action: lowers leg

Rectus Femoris

Origin: superior rim of acetabulum

Insertion: patella

Action: extension of lower leg

Vastus lateralis

Origin: Linea aspera

Insertion: lateral condyle of the tibia

Action: extension of lower leg

Vastus Medialis

Origin: Linea aspera

Insertion: patella

Action: extension of lower leg

Vastus Intermedialis

Origin: anterior and lateral surface of femur

Insertion: patella

Action: extension of lower leg

Sartorius

Origin: anterior superior iliac spine

Insertion: mideal surface of tibia

Action: flex thigh

Gracilis

Origin: pubic bone

Insertion: medial surface of tibia

Action: flexes thigh

Gastronemius

Origin: medial and lateral condyles of femur

Insertion: posterior surface of calcaneus

action: plantar flexion

• soleus

Origin: heads of fibula and tibia

Insertion: posterior surface of calcaneus

Action: platar flexion

Tibialis Anterior

Origin: lateral condyle of tibia

Insertion: medial cuniform

Action: dorsiflexion

Tibialis Posterior

origin: tibia

insertion: cuniforms

action: plantar flexion