Superficial Leg Posterior Compartment

Question 1

Gastrocnemius and soleus insertion

Answer 1

Calcaneal tuberosity via the calcaneal (Achilles) tendon

Question 2

Gastrocnemius and soleus action

Answer 2

Talocrural joint: plantar flexion

Knee joint : flexion (gastrocnemius)

Question 3

Gastrocnemius, soleus, and plantaris innervation

Answer 3

Tibial n S1,S2

Question 4

Soleus origin

Answer 4

Fibula (posterior surfaces of head and neck)

Tibial ( soleal line via a tendinous arch)

Question 5

Plantaris origin

Answer 5

Femur (Lat epicondyle, proximal to lateral head of gastrocnemius)

Question 6

Plantaris insertion

Answer 6

Calcaneal tuberosity

Question 7

Plantaris action

Answer 7

Negligible: may prevent compression of posterior leg musculature during flexion of knee

Question 8

Gastrocnemius origin

Answer 8

Femur (lateral and medial epicondyles)