FRONT THIGH AND LEG

Vastus lateralis

O: Greater trochanter and surface of the femur
I: Patella and adjacent ligaments
A: Extend the shank

Tensor fascia latae

O: iliium and neighboring fascia
I: fascia lata
A: tightens the fascia lata

Sartorius

O: Crest and ventral border of the ilium
I: Proximal end of the tibia; patella; fascia and
ligaments in between
A: Adduct and rotate thigh; extend shank

Gracilis

O: Ischial and pubic symphyses
I: Tibia (via an aponeurosis) long bone
A: adduct leg

Tibialis anterior

O: Proximal parts of tibia fibula
I: First metatarsal via a strong tendon
A: Extend (dorsiflex) foot

Rectus femoris

O: Ilium, near the acetabulum
I: Patella and adjacent ligaments
A: Extend the shank

Vastus medialis

O: Femur
I: Patella and adjacent ligaments
A: Extend the shank

gastrocnemius

O: Surface fascia; femur; tendon and fascia of the plantaris muscle
I: Calcaneus (via the Achilles' tendon)
A: Ventroflex the foot

plantaris

O: Patella and femur
I: Digits (via a tendon divided into four)
A: Flex digits; extend ankle

Soleus

O: fibula
I: Calcaneus (joins tendon of the gastrocnemius)
A: Ventroflex the foot
(with the gastrocnemius)

semitendinosus

Extensor digitorum longus

Lateral epicondyle of the femur

Stout tendon which diverges into four tendons inserted on each digit

Extends digits and dorsiflexes the foot

Flexor Digitorum Longus

Tibia, fibula, adjacent fascia

Slender tendons that unite to form one, which then divides into 4 tendons inserted on the digits

Flexes the digits