Posterior Shank Muscles

Question 1

Gastrocnemius

Answer 1

O: Medial Head:
Medial Posterior Femoral Condyle

Lateral Head:
Lateral Posterior Femoral Condyle

I: Achilles Tendon

A: Plantar Flexion, Inversion, Knee Flexion

N: Tibial Nerve
(S1 - 2)

Question 2

Soleus

Answer 2

O: Posterior Lateral Head and Shaft of Fibula, Posterior Tibia below the Soleal Line

I: Achilles Tendon

A: Plantar Flexion and
Inversion

N: Tibial Nerve (S1 - 2)

Question 3

Plantaris

Answer 3

O: Lateral Supracondylar Line of the Femur

I: Achilles Tendon Plantar Flexion

A: Inversion

N: Tibial Nerve (S1 - 2)

Question 4

Tibialis Posterior

Answer 4

O: Upper ½ of the Fibula, Interosseous Membrane

I: All Tarsals Except the Talus, Bases of Metatarsals 2-4

A: Plantar Flexion and Inversion

N: Tibial Nerve (L4 - 5)

Question 5

Flexor Digitorum Longus

Answer 5

O: Middle 1/3 of Tibia

I: Base of Distal Phalanx for Toes 2-5

A: Plantar Flexion and Inversion

N: Tibial Nerve
(L4 - 5)

Question 6

Flexor Hallucis Longus

Answer 6

O: Lower 2/3 of Fibula, Interosseous Membrane

I: Base of the Distal Phalanx of the Hallux

A: Plantar Flexion, Inversion, Flexion (big toe)

N: Tibial Nerve (L4 - 5)