Origins, insertions + actions of the posterior leg

Question 1

Tibialis Posterior

Answer 1

Origin: Posterior surface of the tibia.
Insertion: Navicular tuberosity + lateral uniform.
Action: Inversion + Plantarflexion.
NS: Tibial nerve.
BS: Posterior tibial artery.

Question 2

Popliteus

Answer 2

Origin: Lateral condyle of femur.
Insertion: Tibia.
Action: Knee flexion + Medial rotation.
NS: Tibial nerve.
BS: Popliteal + Posterior tibial artery.

Question 3

Flexor digitorium longus

Answer 3

Origin: Posterior surface of tibia.
Insertion: Base of distal phalanx of digit 2-5.
Action: Inversion, Plantarflexion + flexion of digits 2-5.
NS: Tibial nerve.
BS: Posterior tibial artery.

Question 4

Flexor hallucis longus

Answer 4

Origin: Fibula.
Insertion: Inferior surface of distal phalanx great toe.
Action: Inversion, Plantarflexion + flexion of great toe.
NS: Tibial nerve.
BS: Posterior tibial artery.

Question 5

Plantaris

Answer 5

Origin: Lateral supracondylar line of femur.
Insertion: Calcanues.
Action: Plantarflexion + knee flexion.
NS: Tibial nerve.
BS: Popliteal artery.

Question 6

Soleus

Answer 6

Origin: Head of fibula + posterior surface of tibia.
Insertion: Achilles tendon.
Action: Plantarflexion.
NS: Tibial nerve.
BS: Popliteal + posterior tibial artery.

Question 7

Gastrocnemius

Answer 7

Origin: Femoral epicondyles.
Insertion: Achilles tendon.
Action: Plantarflexion + knee flexion.
NS: Tibial nerve.
BS: Popliteal + Posterior tibial artery.