Posterior Tibialis

Question 1

Posterior Tibialis (ORIGIN)

Answer 1

Interosseous membrane, posterior surface of the tibia inferior to the soleal line, and posterior surface of the fibula

Question 2

Posterior Tibialis (INSERTION)

Answer 2

Tuberosity of the navicular, cuneiform, cuboid, and sustentaculum tali of the calcaneus; bases of the second, third, and fourth metatarsals

Question 3

Posterior Tibialis (INNERVATION)

Answer 3

Tibial nerve (L4, L5)

Question 4

Posterior Tibialis (BLOOD SUPPLY)

Answer 4

Posterior tibial artery, fibular (peroneal) artery

Question 5

Posterior Tibialis (ACTION)

Answer 5

Plantarflexes the foot at the ankle and inverts the foot