Lower Leg, Ankle, and Foot Anatomy

Question 1

Gastrocnemius

Answer 1

Origin: posterior condyles of the femur
Insertion: calcaneus via the achilles tendon
Action: plantar flexion and weak knee flexion

Question 2

Soleus

Answer 2

Origin: posterior and medial tibia and fibula head
Insertion: calcaneus via the achilles tendon
Action: plantar flexion

Question 3

Popliteus

Answer 3

Origin: lateral epicondyle of femur
Insertion: posterior tibia
Action|: initiates flexion of the knee and internal rotation of tibia

Question 4

Tibialis Anterior

Answer 4

Origin: upper 1/2 and lateral surface of tibia
Insertion: base of 1st metatarsal and medial cuneiform
Action: dorsiflexion and inversion

Question 5

Tibialis Posterior

Answer 5

Origin: posterior tibia and fibula
Insertion: navicular, cuboid, cuneiforms, mets
Action: plantar flexion and inversion

Question 6

Peroneus Longus

Answer 6

Origin|: proximal portion of lateral fibula
Insertion: 1st metatarsal, medial cuneiform
Action: everts and plantar flexes foot

Question 7

Peroneus Brevis

Answer 7

Origin: lower 2/3 of lateral fibula
Insertion: base of 5th metatarsal
Action: evers and plantar flexes foot

Question 8

Flexor Digitorum Longus

Answer 8

Origin: posterior surface of tibia
Insertion: base of phalanges 1-4
Action: flexes toes and plantar flexes foot