Posterior Compartment of the Leg

Question 1

Gastrocnemius

Answer 1

O= Sup to articular surfaces of femoral condyles
I= Calcaneal tendon
A= Knee flexion, plantarflexion
In= Tibial 
SUPERFICIAL

Question 2

Plantaris

Answer 2

O= Lateral supracondyler ridge of femur (above lat head of gastrocnemius)
I= Calcaneal tendon
A= Plantarflexion, knee flexion
In= Tibial
SUPERFICIAL

Question 3

Soleus

Answer 3

O= Fibula, medial tibia (soleal line)
I= Calcaneal tendon
A= Plantarflexion
In= Tibial
SUPERFICIAL

Question 4

Popliteus

Answer 4

O= Lat femoral epicondyle
I= Post surface of tibia before soleal line
A= Med rot of tibia on femur (if fixed)
     Lat rot of femur on tibia (if tibia fixed)
    Unlocks knee
    Prevents forward femur dislocation
In= Tibial
DEEP

Question 5

Tibialis Posterior

Answer 5

O= Tibia and fibula
I= Navicular and med cuneiform
A= Inversion, plantarflexion
In= Tibial

Question 6

Flexor Hallucis Longus

Answer 6

O= Post mid 1/3rd of fibula
I= Base of distal phalanx of hallus
A= Flex all of big toe, plantarflexion
In= Tibial

Question 7

Flexor Digitorum Longus

Answer 7

O= Post surface of tibia
I= Base of distal phalanges of 4 toes (plantar)
A= Flex toes
In= Tibial

Question 8

Order posterior to medial malloelus

Answer 8

Tibialis Posterior
Digitorum Longus
Artery (posterior tibial)
Nerve (tibial)
Hallucis Longus