Posterior Leg Muscles (Superficial Group)

Question 1

Gastrocnemius

Answer 1

O: posterior surface of femur just proximal to medial and lateral condyles

I: calcaneus through tendo calcaneus

A: plantar flexion of the foot, flexion of leg and free limb

In: tibial nerve

Question 2

Soleus

Answer 2

O: soleal (popliteal) line, posterior surface of upper third + medial border of the middle third of the tibia + proximal third of posterior surface of the fibula

I: calcaneus through tendo calcaneus

A: plantar flexion of the foot

In: tibial nerve

Question 3

Plantaris

Answer 3

O: lateral epicondyle of femur

I: calcaneus (anteromedial to tendo calcaneus)

A: weak plantar flexion of foot, weak flexion of leg

In: tibial nerve