Posterior Compartment Of The Leg

Question 1

Gastrocnemius

Answer 1

O: lateral head - lateral femoral condyle; medial head - medial femoral condyle
I: calcaneus via calcaneus tendon
A: PF of foot; knee flexion
N: tibial N (S1-2)

Question 2

Soleus

Answer 2

O: posterior surface of tibia and fibula
I: calcaneus via calcaneus tendon
A: PF of foot
N: tibial (S1-2)

Question 3

Plantaris

Answer 3

O: lateral femoral condyle
I: calcaneus
A: PF foot and knee flexion
N: tibial (S1-2)

Question 4

Flexor Digitorum Longus

Answer 4

O: superior/posterior surface of tibia
I: distal phalanx of lateral 4 digits
A: flexion of digits 2-5 and PF of foot
N: tibial (S2-3)

Question 5

Flexor Hallucis Longus

Answer 5

O: posterior/distal half of fibula
I: distal phalanx of big toe
A: flexion of hallux and PF of foot
N: tibial (S2-3)

Question 6

Tibialis Posterior

Answer 6

O: tibia, fibula, and interosseus membrane
I: navicular, coneiform, cuboid, and base of 2nd, 3rd, and 4th metatarsal
A: inversion and PF of foot
N: tibial (L4-5)

Question 7

Popliteus

Answer 7

O: lateral surface of lateral femoral condyle and lateral meniscus
I: posterior surface of superior medial tibia
A: rotation f knee joint, knee flexion
N: tibial (L4-5/S1)