ABFAS ABFAS Surgical Anatomy and Biomechanics

Question 1

Which tarsal bone serves as the keystone of the medial longitudinal arch?

Accepted Answer

Talus

Answer

Navicular

Answer

Calcaneus

Answer

Cuboid

Question 2

The Achilles tendon inserts on which surface of the calcaneus?

Accepted Answer

Posterior surface

Answer

Anterior surface

Answer

Superior surface

Answer

Medial surface

Question 3

In normal gait, which phase involves the greatest load on the forefoot?

Accepted Answer

Terminal stance and pre-swing

Answer

Loading response

Answer

Mid-stance

Answer

Initial contact

Question 4

Which nerve provides sensory innervation to the first web space of the foot?

Accepted Answer

Deep peroneal nerve

Answer

Sural nerve

Answer

Superficial peroneal nerve

Answer

Medial plantar nerve

Question 5

The spring ligament (plantar calcaneonavicular ligament) primarily supports which structure?

Accepted Answer

Head of the talus

Answer

Lateral column

Answer

Cuboid

Answer

Base of the fifth metatarsal

Question 6

Which muscle is the primary invertor of the subtalar joint?

Accepted Answer

Tibialis posterior

Answer

Peroneus longus

Answer

Extensor hallucis longus

Answer

Flexor digitorum longus