Posterior Leg Muscles (Deep Group)

Question 1

Popliteus

Answer 1

O: lateral condyle of the femur

I: proximal third of posterior surface of tibia

A: medial rotation of leg on femur, lateral rotation of femur on leg

In: tibial nerve

Question 2

Flexor Hallucis Longus

Answer 2

O: middle half of posterior surface of fibula

I: distal phalanx of big toe

A: flexion of big toe, weak plantar flexion of foot

In: tibial nerve

Question 3

Flexor Digitorum Longus

Answer 3

O: middle third of posterior surface of tibia

I: distal phalanges of lateral four toes

A: flexion of distal phalanges of lateral four toes, weak plantar flexion and inversion of foot

In: tibial nerve

Question 4

Tibialis Posterior

Answer 4

O: proximal two-thirds of posterior surface of tibia + proximal two-thirds of fibula, interosseous membrane

I: navicular, cuneiforms, cuboid, bases of second to fourth metatarsals

A: adduct forepart of foot, inversion and plantar flexion of foot

In: tibial nerve